82458931 has 4 divisors (see below), whose sum is σ = 83856600. Its totient is φ = 81061264.

The previous prime is 82458877. The next prime is 82458953. The reversal of 82458931 is 13985428.

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

It is a cyclic number.

It is not a de Polignac number, because 82458931 - 2¹¹ = 82456883 is a prime.

It is a super-2 number, since 2×82458931² = 13598950603325522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82458331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698746 + ... + 698863.

It is an arithmetic number, because the mean of its divisors is an integer number (20964150).

Almost surely, 2^82458931 is an apocalyptic number.

82458931 is a deficient number, since it is larger than the sum of its proper divisors (1397669).

82458931 is a wasteful number, since it uses less digits than its factorization.

82458931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397668.

The product of its digits is 69120, while the sum is 40.

The square root of 82458931 is about 9080.6900068222. The cubic root of 82458931 is about 435.2571360334.

The spelling of 82458931 in words is "eighty-two million, four hundred fifty-eight thousand, nine hundred thirty-one".