64976123 has 2 divisors, whose sum is σ = 64976124. Its totient is φ = 64976122.

The previous prime is 64976117. The next prime is 64976189. The reversal of 64976123 is 32167946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64976123 - 2¹² = 64972027 is a prime.

It is a super-2 number, since 2×64976123² = 8443793120222258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64976113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32488061 + 32488062.

It is an arithmetic number, because the mean of its divisors is an integer number (32488062).

Almost surely, 2^64976123 is an apocalyptic number.

64976123 is a deficient number, since it is larger than the sum of its proper divisors (1).

64976123 is an equidigital number, since it uses as much as digits as its factorization.

64976123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 64976123 is about 8060.7768236070. The cubic root of 64976123 is about 402.0233375889.

The spelling of 64976123 in words is "sixty-four million, nine hundred seventy-six thousand, one hundred twenty-three".