64930895 has 8 divisors (see below), whose sum is σ = 80430720. Its totient is φ = 50268960.

The previous prime is 64930867. The next prime is 64930897. The reversal of 64930895 is 59803946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64930895 - 2¹⁴ = 64914511 is a prime.

It is a super-2 number, since 2×64930895² = 8432042251002050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64930897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209300 + ... + 209609.

It is an arithmetic number, because the mean of its divisors is an integer number (10053840).

Almost surely, 2^64930895 is an apocalyptic number.

64930895 is a deficient number, since it is larger than the sum of its proper divisors (15499825).

64930895 is a wasteful number, since it uses less digits than its factorization.

64930895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418945.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 64930895 is about 8057.9708984334. The cubic root of 64930895 is about 401.9300369982.

The spelling of 64930895 in words is "sixty-four million, nine hundred thirty thousand, eight hundred ninety-five".