84810900 has 36 divisors (see below), whose sum is σ = 245387072. Its totient is φ = 22616160.

The previous prime is 84810881. The next prime is 84810917. The reversal of 84810900 is 901848.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 11 ways as a sum of consecutive naturals, for example, 141052 + ... + 141651.

Almost surely, 2^84810900 is an apocalyptic number.

It is an amenable number.

84810900 is an abundant number, since it is smaller than the sum of its proper divisors (160576172).

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

84810900 is a wasteful number, since it uses less digits than its factorization.

84810900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282720 (or 282713 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 84810900 is about 9209.2833597409. The cubic root of 84810900 is about 439.3566700298.

The spelling of 84810900 in words is "eighty-four million, eight hundred ten thousand, nine hundred".