84405992 has 16 divisors (see below), whose sum is σ = 172648800. Its totient is φ = 38366320.

The previous prime is 84405973. The next prime is 84406001. The reversal of 84405992 is 29950448.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479492 + ... + 479667.

It is an arithmetic number, because the mean of its divisors is an integer number (10790550).

Almost surely, 2^84405992 is an apocalyptic number.

It is an amenable number.

84405992 is an abundant number, since it is smaller than the sum of its proper divisors (88242808).

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

84405992 is a wasteful number, since it uses less digits than its factorization.

84405992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959176 (or 959172 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 84405992 is about 9187.2733713545. The cubic root of 84405992 is about 438.6563555850.

The spelling of 84405992 in words is "eighty-four million, four hundred five thousand, nine hundred ninety-two".