64972711 has 2 divisors, whose sum is σ = 64972712. Its totient is φ = 64972710.

The previous prime is 64972679. The next prime is 64972727. The reversal of 64972711 is 11727946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64972711 - 2⁵ = 64972679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64972771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32486355 + 32486356.

It is an arithmetic number, because the mean of its divisors is an integer number (32486356).

Almost surely, 2^64972711 is an apocalyptic number.

64972711 is a deficient number, since it is larger than the sum of its proper divisors (1).

64972711 is an equidigital number, since it uses as much as digits as its factorization.

64972711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 37.

The square root of 64972711 is about 8060.5651786956. The cubic root of 64972711 is about 402.0163005032.

The spelling of 64972711 in words is "sixty-four million, nine hundred seventy-two thousand, seven hundred eleven".