64993258 has 16 divisors (see below), whose sum is σ = 107853120. Its totient is φ = 29125600.

The previous prime is 64993237. The next prime is 64993277. The reversal of 64993258 is 85239946.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19243 + ... + 22366.

It is an arithmetic number, because the mean of its divisors is an integer number (6740820).

Almost surely, 2^64993258 is an apocalyptic number.

64993258 is a deficient number, since it is larger than the sum of its proper divisors (42859862).

64993258 is a wasteful number, since it uses less digits than its factorization.

64993258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41693.

The product of its digits is 466560, while the sum is 46.

The square root of 64993258 is about 8061.8396163655. The cubic root of 64993258 is about 402.0586739767.

The spelling of 64993258 in words is "sixty-four million, nine hundred ninety-three thousand, two hundred fifty-eight".