656377 has 2 divisors, whose sum is σ = 656378. Its totient is φ = 656376.

The previous prime is 656371. The next prime is 656389. The reversal of 656377 is 773656.

656377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622521 + 33856 = 789^2 + 184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-656377 is a prime.

It is a super-2 number, since 2×656377² = 861661532258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (656371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328188 + 328189.

It is an arithmetic number, because the mean of its divisors is an integer number (328189).

2⁶⁵⁶³⁷⁷ is an apocalyptic number.

It is an amenable number.

656377 is a deficient number, since it is larger than the sum of its proper divisors (1).

656377 is an equidigital number, since it uses as much as digits as its factorization.

656377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 34.

The square root of 656377 is about 810.1709696107. The cubic root of 656377 is about 86.9062715432.

It can be divided in two parts, 65 and 6377, that multiplied together give a triangular number (414505 = T₉₁₀).

The spelling of 656377 in words is "six hundred fifty-six thousand, three hundred seventy-seven".