84085900 has 18 divisors (see below), whose sum is σ = 182466620. Its totient is φ = 33634320.

The previous prime is 84085879. The next prime is 84085913. The reversal of 84085900 is 958048.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420330 + ... + 420529.

Almost surely, 2^84085900 is an apocalyptic number.

It is an amenable number.

84085900 is an abundant number, since it is smaller than the sum of its proper divisors (98380720).

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

84085900 is a wasteful number, since it uses less digits than its factorization.

84085900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840873 (or 840866 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 84085900 is about 9169.8364216599. The cubic root of 84085900 is about 438.1011491198.

The spelling of 84085900 in words is "eighty-four million, eighty-five thousand, nine hundred".