818712 has 48 divisors (see below), whose sum is σ = 2260440. Its totient is φ = 267648.

The previous prime is 818707. The next prime is 818717. The reversal of 818712 is 217818.

818712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (818707) and next prime (818717).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

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 (818717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5908 + ... + 6044.

2⁸¹⁸⁷¹² 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 818712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130220).

818712 is an abundant number, since it is smaller than the sum of its proper divisors (1441728).

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

818712 is a wasteful number, since it uses less digits than its factorization.

818712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 225 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 818712 is about 904.8270552984. The cubic root of 818712 is about 93.5499842362.

The spelling of 818712 in words is "eight hundred eighteen thousand, seven hundred twelve".