64893873 has 36 divisors (see below), whose sum is σ = 101154480. Its totient is φ = 36875520.

The previous prime is 64893869. The next prime is 64893877. The reversal of 64893873 is 37839846.

It is an interprime number because it is at equal distance from previous prime (64893869) and next prime (64893877).

It is not a de Polignac number, because 64893873 - 2² = 64893869 is a prime.

It is a super-2 number, since 2×64893873² = 8422429505880258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64893877) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 668961 + ... + 669057.

Almost surely, 2^64893873 is an apocalyptic number.

It is an amenable number.

64893873 is a deficient number, since it is larger than the sum of its proper divisors (36260607).

64893873 is a wasteful number, since it uses less digits than its factorization.

64893873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 130 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 64893873 is about 8055.6733424339. The cubic root of 64893873 is about 401.8536322665.

The spelling of 64893873 in words is "sixty-four million, eight hundred ninety-three thousand, eight hundred seventy-three".