82919124 has 18 divisors (see below), whose sum is σ = 209601210. Its totient is φ = 27639696.

The previous prime is 82919101. The next prime is 82919129. The reversal of 82919124 is 42191928.

It can be written as a sum of positive squares in only one way, i.e., 67568400 + 15350724 = 8220^2 + 3918^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×82919124² = 13751162249854752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2303309 = 82919124 / (8 + 2 + 9 + 1 + 9 + 1 + 2 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82919129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1151619 + ... + 1151690.

Almost surely, 2^82919124 is an apocalyptic number.

It is an amenable number.

82919124 is an abundant number, since it is smaller than the sum of its proper divisors (126682086).

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

82919124 is a wasteful number, since it uses less digits than its factorization.

82919124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303319 (or 2303314 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 82919124 is about 9105.9938502066. The cubic root of 82919124 is about 436.0653396451.

The spelling of 82919124 in words is "eighty-two million, nine hundred nineteen thousand, one hundred twenty-four".