656547713 has 4 divisors (see below), whose sum is σ = 656624340. Its totient is φ = 656471088.

The previous prime is 656547691. The next prime is 656547739. The reversal of 656547713 is 317745656.

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

It can be written as a sum of positive squares in 2 ways, for example, as 386043904 + 270503809 = 19648^2 + 16447^2 .

It is a cyclic number.

It is not a de Polignac number, because 656547713 - 2¹⁴ = 656531329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656547763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23570 + ... + 43227.

It is an arithmetic number, because the mean of its divisors is an integer number (164156085).

Almost surely, 2^656547713 is an apocalyptic number.

It is an amenable number.

656547713 is a deficient number, since it is larger than the sum of its proper divisors (76627).

656547713 is an equidigital number, since it uses as much as digits as its factorization.

656547713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76626.

The product of its digits is 529200, while the sum is 44.

The square root of 656547713 is about 25623.1870187922. The cubic root of 656547713 is about 869.1380519352.

The spelling of 656547713 in words is "six hundred fifty-six million, five hundred forty-seven thousand, seven hundred thirteen".