84990976 has 88 divisors (see below), whose sum is σ = 198084096. Its totient is φ = 35696640.

The previous prime is 84990953. The next prime is 84990977. The reversal of 84990976 is 67909948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84990977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508845 + ... + 509011.

Almost surely, 2^84990976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84990976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99042048).

84990976 is an abundant number, since it is smaller than the sum of its proper divisors (113093120).

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

84990976 is a wasteful number, since it uses less digits than its factorization.

84990976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 84990976 is about 9219.0550491902. The cubic root of 84990976 is about 439.6674070609.

The spelling of 84990976 in words is "eighty-four million, nine hundred ninety thousand, nine hundred seventy-six".