712236 has 48 divisors (see below), whose sum is σ = 1944320. Its totient is φ = 198720.

The previous prime is 712219. The next prime is 712237. The reversal of 712236 is 632217.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (712237) by changing a digit.

712236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5055 + ... + 5193.

2⁷¹²²³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 712236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972160).

712236 is an abundant number, since it is smaller than the sum of its proper divisors (1232084).

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

712236 is a wasteful number, since it uses less digits than its factorization.

712236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 212 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 712236 is about 843.9407562146. The cubic root of 712236 is about 89.3047667380.

The spelling of 712236 in words is "seven hundred twelve thousand, two hundred thirty-six".