83478980 has 24 divisors (see below), whose sum is σ = 188791512. Its totient is φ = 30822912.

The previous prime is 83478979. The next prime is 83479013. The reversal of 83478980 is 8987438.

It can be written as a sum of positive squares in 4 ways, for example, as 341056 + 83137924 = 584^2 + 9118^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160277 + ... + 160796.

It is an arithmetic number, because the mean of its divisors is an integer number (7866313).

Almost surely, 2^83478980 is an apocalyptic number.

It is an amenable number.

83478980 is an abundant number, since it is smaller than the sum of its proper divisors (105312532).

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

83478980 is a wasteful number, since it uses less digits than its factorization.

83478980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321095 (or 321093 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 83478980 is about 9136.6832056277. The cubic root of 83478980 is about 437.0445524277.

The spelling of 83478980 in words is "eighty-three million, four hundred seventy-eight thousand, nine hundred eighty".