64828616 has 16 divisors (see below), whose sum is σ = 128704140. Its totient is φ = 30507520.

The previous prime is 64828613. The next prime is 64828619. The reversal of 64828616 is 61682846.

It is an interprime number because it is at equal distance from previous prime (64828613) and next prime (64828619).

It can be written as a sum of positive squares in 2 ways, for example, as 63266116 + 1562500 = 7954^2 + 1250^2 .

It is not an unprimeable number, because it can be changed into a prime (64828613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238205 + ... + 238476.

Almost surely, 2^64828616 is an apocalyptic number.

It is an amenable number.

64828616 is a deficient number, since it is larger than the sum of its proper divisors (63875524).

64828616 is a wasteful number, since it uses less digits than its factorization.

64828616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476704 (or 476700 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 64828616 is about 8051.6219484027. The cubic root of 64828616 is about 401.7188863275.

The spelling of 64828616 in words is "sixty-four million, eight hundred twenty-eight thousand, six hundred sixteen".