656434 has 8 divisors (see below), whose sum is σ = 1001520. Its totient is φ = 322596.

The previous prime is 656429. The next prime is 656459. The reversal of 656434 is 434656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2664 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (125190).

2⁶⁵⁶⁴³⁴ is an apocalyptic number.

656434 is a deficient number, since it is larger than the sum of its proper divisors (345086).

656434 is a wasteful number, since it uses less digits than its factorization.

656434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5624.

The product of its digits is 8640, while the sum is 28.

The square root of 656434 is about 810.2061466071. The cubic root of 656434 is about 86.9087871271.

The spelling of 656434 in words is "six hundred fifty-six thousand, four hundred thirty-four".