84639908 has 48 divisors (see below), whose sum is σ = 166803840. Its totient is φ = 37382400.

The previous prime is 84639883. The next prime is 84639911. The reversal of 84639908 is 80993648.

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, 71078 + ... + 72258.

It is an arithmetic number, because the mean of its divisors is an integer number (3475080).

Almost surely, 2^84639908 is an apocalyptic number.

It is an amenable number.

84639908 is a deficient number, since it is larger than the sum of its proper divisors (82163932).

84639908 is a wasteful number, since it uses less digits than its factorization.

84639908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1266 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 84639908 is about 9199.9949999986. The cubic root of 84639908 is about 439.0612008497.

The spelling of 84639908 in words is "eighty-four million, six hundred thirty-nine thousand, nine hundred eight".