83315880 has 48 divisors (see below), whose sum is σ = 270777780. Its totient is φ = 22217472.

The previous prime is 83315863. The next prime is 83315887. The reversal of 83315880 is 8851338.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81974916 + 1340964 = 9054^2 + 1158^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (83315887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115357 + ... + 116076.

Almost surely, 2^83315880 is an apocalyptic number.

It is an amenable number.

83315880 is an abundant number, since it is smaller than the sum of its proper divisors (187461900).

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

83315880 is a wasteful number, since it uses less digits than its factorization.

83315880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231450 (or 231443 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 83315880 is about 9127.7532832565. The cubic root of 83315880 is about 436.7597364569.

The spelling of 83315880 in words is "eighty-three million, three hundred fifteen thousand, eight hundred eighty".