84919900 has 36 divisors (see below), whose sum is σ = 198454312. Its totient is φ = 31354560.

The previous prime is 84919889. The next prime is 84919931. The reversal of 84919900 is 991948.

It is a super-2 number, since 2×84919900² = 14422778832020000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31362 + ... + 33961.

Almost surely, 2^84919900 is an apocalyptic number.

It is an amenable number.

84919900 is an abundant number, since it is smaller than the sum of its proper divisors (113534412).

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

84919900 is a wasteful number, since it uses less digits than its factorization.

84919900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65350 (or 65343 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 84919900 is about 9215.1994009896. The cubic root of 84919900 is about 439.5448116305.

The spelling of 84919900 in words is "eighty-four million, nine hundred nineteen thousand, nine hundred".