64628115 has 8 divisors (see below), whose sum is σ = 103405008. Its totient is φ = 34468320.

The previous prime is 64628111. The next prime is 64628143. The reversal of 64628115 is 51182646.

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

It is not a de Polignac number, because 64628115 - 2² = 64628111 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64628111) 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, 2154256 + ... + 2154285.

It is an arithmetic number, because the mean of its divisors is an integer number (12925626).

Almost surely, 2^64628115 is an apocalyptic number.

64628115 is a deficient number, since it is larger than the sum of its proper divisors (38776893).

64628115 is a wasteful number, since it uses less digits than its factorization.

64628115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308549.

The product of its digits is 11520, while the sum is 33.

The square root of 64628115 is about 8039.1613368560. The cubic root of 64628115 is about 401.3043151985.

The spelling of 64628115 in words is "sixty-four million, six hundred twenty-eight thousand, one hundred fifteen".