656060687 has 2 divisors, whose sum is σ = 656060688. Its totient is φ = 656060686.

The previous prime is 656060641. The next prime is 656060701. The reversal of 656060687 is 786060656.

656060687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 656060687 - 2⁶ = 656060623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656060627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328030343 + 328030344.

It is an arithmetic number, because the mean of its divisors is an integer number (328030344).

Almost surely, 2^656060687 is an apocalyptic number.

656060687 is a deficient number, since it is larger than the sum of its proper divisors (1).

656060687 is an equidigital number, since it uses as much as digits as its factorization.

656060687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 656060687 is about 25613.6816369689. The cubic root of 656060687 is about 868.9230903873.

The spelling of 656060687 in words is "six hundred fifty-six million, sixty thousand, six hundred eighty-seven".