556972723 has 2 divisors, whose sum is σ = 556972724. Its totient is φ = 556972722.

The previous prime is 556972709. The next prime is 556972733. The reversal of 556972723 is 327279655.

556972723 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 a de Polignac number, because none of the positive numbers 2^k-556972723 is a prime.

It is a super-2 number, since 2×556972723² = 620437228332069458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556972733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278486361 + 278486362.

It is an arithmetic number, because the mean of its divisors is an integer number (278486362).

Almost surely, 2^556972723 is an apocalyptic number.

556972723 is a deficient number, since it is larger than the sum of its proper divisors (1).

556972723 is an equidigital number, since it uses as much as digits as its factorization.

556972723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 46.

The square root of 556972723 is about 23600.2695535454. The cubic root of 556972723 is about 822.7691050109.

The spelling of 556972723 in words is "five hundred fifty-six million, nine hundred seventy-two thousand, seven hundred twenty-three".