84995904 has 56 divisors (see below), whose sum is σ = 257015488. Its totient is φ = 24284160.

The previous prime is 84995899. The next prime is 84995917. The reversal of 84995904 is 40959948.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30277 + ... + 32964.

Almost surely, 2^84995904 is an apocalyptic number.

84995904 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

84995904 is an abundant number, since it is smaller than the sum of its proper divisors (172019584).

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

84995904 is a wasteful number, since it uses less digits than its factorization.

84995904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63263 (or 63253 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 84995904 is about 9219.3223178279. The cubic root of 84995904 is about 439.6759045869.

The spelling of 84995904 in words is "eighty-four million, nine hundred ninety-five thousand, nine hundred four".