64708723 has 2 divisors, whose sum is σ = 64708724. Its totient is φ = 64708722.

The previous prime is 64708703. The next prime is 64708727. The reversal of 64708723 is 32780746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64708723 - 2⁵ = 64708691 is a prime.

It is a super-4 number, since 4×64708723⁴ (a number of 32 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (64708727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32354361 + 32354362.

It is an arithmetic number, because the mean of its divisors is an integer number (32354362).

Almost surely, 2^64708723 is an apocalyptic number.

64708723 is a deficient number, since it is larger than the sum of its proper divisors (1).

64708723 is an equidigital number, since it uses as much as digits as its factorization.

64708723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 64708723 is about 8044.1732328438. The cubic root of 64708723 is about 401.4710893578.

The spelling of 64708723 in words is "sixty-four million, seven hundred eight thousand, seven hundred twenty-three".