64457039 has 2 divisors, whose sum is σ = 64457040. Its totient is φ = 64457038.

The previous prime is 64457027. The next prime is 64457059. The reversal of 64457039 is 93075446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64457039 - 2²⁴ = 47679823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64456993 and 64457011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64457059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32228519 + 32228520.

It is an arithmetic number, because the mean of its divisors is an integer number (32228520).

Almost surely, 2^64457039 is an apocalyptic number.

64457039 is a deficient number, since it is larger than the sum of its proper divisors (1).

64457039 is an equidigital number, since it uses as much as digits as its factorization.

64457039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 64457039 is about 8028.5141215545. The cubic root of 64457039 is about 400.9499069894.

The spelling of 64457039 in words is "sixty-four million, four hundred fifty-seven thousand, thirty-nine".