84008920 has 32 divisors (see below), whose sum is σ = 192229200. Its totient is φ = 33033088.

The previous prime is 84008891. The next prime is 84008921. The reversal of 84008920 is 2980048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84008921) 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, 15439 + ... + 20158.

Almost surely, 2^84008920 is an apocalyptic number.

It is an amenable number.

84008920 is an abundant number, since it is smaller than the sum of its proper divisors (108220280).

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

84008920 is a wasteful number, since it uses less digits than its factorization.

84008920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35667 (or 35663 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 84008920 is about 9165.6380028888. The cubic root of 84008920 is about 437.9674155475.

Adding to 84008920 its reverse (2980048), we get a palindrome (86988968).

The spelling of 84008920 in words is "eighty-four million, eight thousand, nine hundred twenty".