656412 has 24 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 207216.

The previous prime is 656407. The next prime is 656423. The reversal of 656412 is 214656.

It is a congruent number.

It is an unprimeable number.

656412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212 + ... + 1667.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2⁶⁵⁶⁴¹² is an apocalyptic number.

It is an amenable number.

656412 is an abundant number, since it is smaller than the sum of its proper divisors (956388).

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

656412 is a wasteful number, since it uses less digits than its factorization.

656412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905 (or 2903 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 656412 is about 810.1925697018. The cubic root of 656412 is about 86.9078162172.

The spelling of 656412 in words is "six hundred fifty-six thousand, four hundred twelve".