79382531 has 4 divisors (see below), whose sum is σ = 79405872. Its totient is φ = 79359192.

The previous prime is 79382521. The next prime is 79382539. The reversal of 79382531 is 13528397.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79382531 is a prime.

It is a super-2 number, since 2×79382531² = 12603172455931922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79382539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5471 + ... + 13736.

It is an arithmetic number, because the mean of its divisors is an integer number (19851468).

Almost surely, 2^79382531 is an apocalyptic number.

79382531 is a deficient number, since it is larger than the sum of its proper divisors (23341).

79382531 is a wasteful number, since it uses less digits than its factorization.

79382531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23340.

The product of its digits is 45360, while the sum is 38.

The square root of 79382531 is about 8909.6874804900. The cubic root of 79382531 is about 429.7754930430.

The spelling of 79382531 in words is "seventy-nine million, three hundred eighty-two thousand, five hundred thirty-one".