656241007 has 2 divisors, whose sum is σ = 656241008. Its totient is φ = 656241006.

The previous prime is 656240993. The next prime is 656241023. The reversal of 656241007 is 700142656.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656241007 - 2¹¹ = 656238959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 656241007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656241107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328120503 + 328120504.

It is an arithmetic number, because the mean of its divisors is an integer number (328120504).

Almost surely, 2^656241007 is an apocalyptic number.

656241007 is a deficient number, since it is larger than the sum of its proper divisors (1).

656241007 is an equidigital number, since it uses as much as digits as its factorization.

656241007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 656241007 is about 25617.2013889105. The cubic root of 656241007 is about 869.0026916914.

The spelling of 656241007 in words is "six hundred fifty-six million, two hundred forty-one thousand, seven".