84036920 has 96 divisors (see below), whose sum is σ = 211150800. Its totient is φ = 30074880.

The previous prime is 84036913. The next prime is 84036923. The reversal of 84036920 is 2963048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84036923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469391 + ... + 469569.

Almost surely, 2^84036920 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 84036920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105575400).

84036920 is an abundant number, since it is smaller than the sum of its proper divisors (127113880).

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

84036920 is a wasteful number, since it uses less digits than its factorization.

84036920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 84036920 is about 9167.1653197703. The cubic root of 84036920 is about 438.0160680218.

Adding to 84036920 its reverse (2963048), we get a palindrome (86999968).

The spelling of 84036920 in words is "eighty-four million, thirty-six thousand, nine hundred twenty".