83369972 has 72 divisors (see below), whose sum is σ = 182020608. Its totient is φ = 33196800.

The previous prime is 83369959. The next prime is 83369987. The reversal of 83369972 is 27996338.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436397 + ... + 436587.

It is an arithmetic number, because the mean of its divisors is an integer number (2528064).

Almost surely, 2^83369972 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 83369972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91010304).

83369972 is an abundant number, since it is smaller than the sum of its proper divisors (98650636).

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

83369972 is a wasteful number, since it uses less digits than its factorization.

83369972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 348 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 83369972 is about 9130.7158536448. The cubic root of 83369972 is about 436.8542366358.

The spelling of 83369972 in words is "eighty-three million, three hundred sixty-nine thousand, nine hundred seventy-two".