84620904 has 64 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 27330240.

The previous prime is 84620903. The next prime is 84620909. The reversal of 84620904 is 40902648.

It is not an unprimeable number, because it can be changed into a prime (84620903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172099 + ... + 172589.

It is an arithmetic number, because the mean of its divisors is an integer number (3409560).

Almost surely, 2^84620904 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 84620904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109105920).

84620904 is an abundant number, since it is smaller than the sum of its proper divisors (133590936).

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

84620904 is a wasteful number, since it uses less digits than its factorization.

84620904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 84620904 is about 9198.9621153693. The cubic root of 84620904 is about 439.0283379296.

The spelling of 84620904 in words is "eighty-four million, six hundred twenty thousand, nine hundred four".