64276628 has 48 divisors (see below), whose sum is σ = 127497216. Its totient is φ = 28131840.

The previous prime is 64276607. The next prime is 64276633. The reversal of 64276628 is 82667246.

It is a super-4 number, since 4×64276628⁴ (a number of 32 digits) contains 4444 as substring.

Its product of digits (193536) is a multiple of the sum of its prime factors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266588 + ... + 266828.

It is an arithmetic number, because the mean of its divisors is an integer number (2656192).

Almost surely, 2^64276628 is an apocalyptic number.

It is an amenable number.

64276628 is a deficient number, since it is larger than the sum of its proper divisors (63220588).

64276628 is a wasteful number, since it uses less digits than its factorization.

64276628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 502 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 64276628 is about 8017.2706078815. The cubic root of 64276628 is about 400.5754799932.

The spelling of 64276628 in words is "sixty-four million, two hundred seventy-six thousand, six hundred twenty-eight".