56747897 has 2 divisors, whose sum is σ = 56747898. Its totient is φ = 56747896.

The previous prime is 56747893. The next prime is 56747903. The reversal of 56747897 is 79874765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54449641 + 2298256 = 7379^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 56747897 - 2² = 56747893 is a prime.

It is not a weakly prime, because it can be changed into another prime (56747891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28373948 + 28373949.

It is an arithmetic number, because the mean of its divisors is an integer number (28373949).

Almost surely, 2^56747897 is an apocalyptic number.

It is an amenable number.

56747897 is a deficient number, since it is larger than the sum of its proper divisors (1).

56747897 is an equidigital number, since it uses as much as digits as its factorization.

56747897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 53.

The square root of 56747897 is about 7533.1200043541. The cubic root of 56747897 is about 384.2818952411.

The spelling of 56747897 in words is "fifty-six million, seven hundred forty-seven thousand, eight hundred ninety-seven".