83490980 has 12 divisors (see below), whose sum is σ = 175331100. Its totient is φ = 33396384.

The previous prime is 83490973. The next prime is 83490983. The reversal of 83490980 is 8909438.

It can be written as a sum of positive squares in 2 ways, for example, as 50013184 + 33477796 = 7072^2 + 5786^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (83490983) 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, 2087255 + ... + 2087294.

It is an arithmetic number, because the mean of its divisors is an integer number (14610925).

Almost surely, 2^83490980 is an apocalyptic number.

It is an amenable number.

83490980 is an abundant number, since it is smaller than the sum of its proper divisors (91840120).

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

83490980 is a wasteful number, since it uses less digits than its factorization.

83490980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174558 (or 4174556 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 83490980 is about 9137.3398754780. The cubic root of 83490980 is about 437.0654929621.

The spelling of 83490980 in words is "eighty-three million, four hundred ninety thousand, nine hundred eighty".