83124972 has 54 divisors (see below), whose sum is σ = 244432188. Its totient is φ = 23749488.

The previous prime is 83124959. The next prime is 83124973. The reversal of 83124972 is 27942138.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (83124973) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21798 + ... + 25325.

It is an arithmetic number, because the mean of its divisors is an integer number (4526522).

Almost surely, 2^83124972 is an apocalyptic number.

It is an amenable number.

83124972 is an abundant number, since it is smaller than the sum of its proper divisors (161307216).

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

83124972 is a wasteful number, since it uses less digits than its factorization.

83124972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47147 (or 47135 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 83124972 is about 9117.2897288613. The cubic root of 83124972 is about 436.4258877571.

The spelling of 83124972 in words is "eighty-three million, one hundred twenty-four thousand, nine hundred seventy-two".