64957893 has 64 divisors (see below), whose sum is σ = 118013952. Its totient is φ = 30689280.

The previous prime is 64957873. The next prime is 64957931. The reversal of 64957893 is 39875946.

It is not a de Polignac number, because 64957893 - 2⁵ = 64957861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64957843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 291180 + ... + 291402.

It is an arithmetic number, because the mean of its divisors is an integer number (1843968).

Almost surely, 2^64957893 is an apocalyptic number.

It is an amenable number.

64957893 is a deficient number, since it is larger than the sum of its proper divisors (53056059).

64957893 is a wasteful number, since it uses less digits than its factorization.

64957893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its digits is 1632960, while the sum is 51.

The square root of 64957893 is about 8059.6459599662. The cubic root of 64957893 is about 401.9857362331.

The spelling of 64957893 in words is "sixty-four million, nine hundred fifty-seven thousand, eight hundred ninety-three".