83398972 has 12 divisors (see below), whose sum is σ = 147240576. Its totient is φ = 41330240.

The previous prime is 83398969. The next prime is 83398979. The reversal of 83398972 is 27989338.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83398979) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 91804 + ... + 92707.

It is an arithmetic number, because the mean of its divisors is an integer number (12270048).

Almost surely, 2^83398972 is an apocalyptic number.

It is an amenable number.

83398972 is a deficient number, since it is larger than the sum of its proper divisors (63841604).

83398972 is a wasteful number, since it uses less digits than its factorization.

83398972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184628 (or 184626 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 83398972 is about 9132.3037619212. The cubic root of 83398972 is about 436.9048835851.

The spelling of 83398972 in words is "eighty-three million, three hundred ninety-eight thousand, nine hundred seventy-two".