82195724 has 12 divisors (see below), whose sum is σ = 154907424. Its totient is φ = 37936464.

The previous prime is 82195717. The next prime is 82195741. The reversal of 82195724 is 42759128.

It is a super-2 number, since 2×82195724² = 13512274087768352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790292 + ... + 790395.

It is an arithmetic number, because the mean of its divisors is an integer number (12908952).

Almost surely, 2^82195724 is an apocalyptic number.

It is an amenable number.

82195724 is a deficient number, since it is larger than the sum of its proper divisors (72711700).

82195724 is a wasteful number, since it uses less digits than its factorization.

82195724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580704 (or 1580702 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 82195724 is about 9066.1857470493. The cubic root of 82195724 is about 434.7935321760.

The spelling of 82195724 in words is "eighty-two million, one hundred ninety-five thousand, seven hundred twenty-four".