84040960 has 36 divisors (see below), whose sum is σ = 201307428. Its totient is φ = 33615872.

The previous prime is 84040951. The next prime is 84040961. The reversal of 84040960 is 6904048.

It can be written as a sum of positive squares in 2 ways, for example, as 64256256 + 19784704 = 8016^2 + 4448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84040961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31549 + ... + 34108.

It is an arithmetic number, because the mean of its divisors is an integer number (5591873).

Almost surely, 2^84040960 is an apocalyptic number.

84040960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84040960 is an abundant number, since it is smaller than the sum of its proper divisors (117266468).

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

84040960 is an equidigital number, since it uses as much as digits as its factorization.

84040960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65678 (or 65664 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 84040960 is about 9167.3856687717. The cubic root of 84040960 is about 438.0230869867.

The spelling of 84040960 in words is "eighty-four million, forty thousand, nine hundred sixty".