84631904 has 48 divisors (see below), whose sum is σ = 198713088. Its totient is φ = 34691712.

The previous prime is 84631903. The next prime is 84631951. The reversal of 84631904 is 40913648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84631903) 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, 3062 + ... + 13365.

It is an arithmetic number, because the mean of its divisors is an integer number (4139856).

Almost surely, 2^84631904 is an apocalyptic number.

It is an amenable number.

84631904 is an abundant number, since it is smaller than the sum of its proper divisors (114081184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84631904 is a wasteful number, since it uses less digits than its factorization.

84631904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16467 (or 16459 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 84631904 is about 9199.5599894778. The cubic root of 84631904 is about 439.0473604258.

The spelling of 84631904 in words is "eighty-four million, six hundred thirty-one thousand, nine hundred four".