787212 has 48 divisors (see below), whose sum is σ = 2106720. Its totient is φ = 254016.

The previous prime is 787207. The next prime is 787217. The reversal of 787212 is 212787.

787212 is nontrivially palindromic in base 16.

It is an interprime number because it is at equal distance from previous prime (787207) and next prime (787217).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3898 + ... + 4094.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2⁷⁸⁷²¹² is an apocalyptic number.

787212 is the 444-th decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 787212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1053360).

787212 is an abundant number, since it is smaller than the sum of its proper divisors (1319508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787212 is a wasteful number, since it uses less digits than its factorization.

787212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 239 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 787212 is about 887.2496830092. The cubic root of 787212 is about 92.3344787646.

Adding to 787212 its reverse (212787), we get a palindrome (999999).

It can be divided in two parts, 787 and 212, that added together give a palindrome (999).

The spelling of 787212 in words is "seven hundred eighty-seven thousand, two hundred twelve".