83570980 has 48 divisors (see below), whose sum is σ = 186713856. Its totient is φ = 31311360.

The previous prime is 83570951. The next prime is 83570999. The reversal of 83570980 is 8907538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91687 + ... + 92593.

It is an arithmetic number, because the mean of its divisors is an integer number (3889872).

Almost surely, 2^83570980 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 83570980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93356928).

83570980 is an abundant number, since it is smaller than the sum of its proper divisors (103142876).

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

83570980 is a wasteful number, since it uses less digits than its factorization.

83570980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 83570980 is about 9141.7164690227. The cubic root of 83570980 is about 437.2050452731.

The spelling of 83570980 in words is "eighty-three million, five hundred seventy thousand, nine hundred eighty".