656432 has 20 divisors (see below), whose sum is σ = 1453776. Its totient is φ = 281280.

The previous prime is 656429. The next prime is 656459. The reversal of 656432 is 234656.

It is a d-powerful number, because it can be written as 6⁷ + 5⁷ + 4⁷ + 6⁷ + 3 + 2¹¹ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 656432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819 + ... + 3042.

2⁶⁵⁶⁴³² is an apocalyptic number.

It is an amenable number.

656432 is an abundant number, since it is smaller than the sum of its proper divisors (797344).

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

656432 is a wasteful number, since it uses less digits than its factorization.

656432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876 (or 5870 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 656432 is about 810.2049123524. The cubic root of 656432 is about 86.9086988634.

The spelling of 656432 in words is "six hundred fifty-six thousand, four hundred thirty-two".