656534 has 8 divisors (see below), whose sum is σ = 988320. Its totient is φ = 327096.

The previous prime is 656527. The next prime is 656561. The reversal of 656534 is 435656.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 656497 and 656506.

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 656534.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (123540).

2⁶⁵⁶⁵³⁴ is an apocalyptic number.

656534 is a deficient number, since it is larger than the sum of its proper divisors (331786).

656534 is a wasteful number, since it uses less digits than its factorization.

656534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174.

The product of its digits is 10800, while the sum is 29.

The square root of 656534 is about 810.2678569461. The cubic root of 656534 is about 86.9132000802.

The spelling of 656534 in words is "six hundred fifty-six thousand, five hundred thirty-four".