64825679 has 8 divisors (see below), whose sum is σ = 66324720. Its totient is φ = 63343296.

The previous prime is 64825669. The next prime is 64825697. The reversal of 64825679 is 97652846.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64825679 is a prime.

It is a super-2 number, since 2×64825679² = 8404737315622082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64825609) 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, 3884 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (8290590).

Almost surely, 2^64825679 is an apocalyptic number.

64825679 is a deficient number, since it is larger than the sum of its proper divisors (1499041).

64825679 is a wasteful number, since it uses less digits than its factorization.

64825679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329.

The product of its digits is 725760, while the sum is 47.

The square root of 64825679 is about 8051.4395607245. The cubic root of 64825679 is about 401.7128197360.

The spelling of 64825679 in words is "sixty-four million, eight hundred twenty-five thousand, six hundred seventy-nine".