656074 has 4 divisors (see below), whose sum is σ = 984114. Its totient is φ = 328036.

The previous prime is 656063. The next prime is 656077. The reversal of 656074 is 470656.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 27225 = 793^2 + 165^2 .

It is not an unprimeable number, because it can be changed into a prime (656077) by changing a digit.

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 as a sum of consecutive naturals, namely, 164017 + ... + 164020.

2⁶⁵⁶⁰⁷⁴ is an apocalyptic number.

656074 is a deficient number, since it is larger than the sum of its proper divisors (328040).

656074 is a wasteful number, since it uses less digits than its factorization.

656074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328039.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 656074 is about 809.9839504583. The cubic root of 656074 is about 86.8928967839.

The spelling of 656074 in words is "six hundred fifty-six thousand, seventy-four".