56830687 has 2 divisors, whose sum is σ = 56830688. Its totient is φ = 56830686.

The previous prime is 56830637. The next prime is 56830699. The reversal of 56830687 is 78603865.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56830687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56830607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28415343 + 28415344.

It is an arithmetic number, because the mean of its divisors is an integer number (28415344).

Almost surely, 2^56830687 is an apocalyptic number.

56830687 is a deficient number, since it is larger than the sum of its proper divisors (1).

56830687 is an equidigital number, since it uses as much as digits as its factorization.

56830687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 56830687 is about 7538.6130687282. The cubic root of 56830687 is about 384.4686818343.

The spelling of 56830687 in words is "fifty-six million, eight hundred thirty thousand, six hundred eighty-seven".