84408664 has 16 divisors (see below), whose sum is σ = 158563800. Its totient is φ = 42124992.

The previous prime is 84408661. The next prime is 84408679. The reversal of 84408664 is 46680448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84408661) 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, 5269 + ... + 14020.

Almost surely, 2^84408664 is an apocalyptic number.

It is an amenable number.

84408664 is a deficient number, since it is larger than the sum of its proper divisors (74155136).

84408664 is a wasteful number, since it uses less digits than its factorization.

84408664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19842 (or 19838 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 84408664 is about 9187.4187887567. The cubic root of 84408664 is about 438.6609843141.

The spelling of 84408664 in words is "eighty-four million, four hundred eight thousand, six hundred sixty-four".