82530831 has 16 divisors (see below), whose sum is σ = 117932544. Its totient is φ = 51204384.

The previous prime is 82530829. The next prime is 82530841. The reversal of 82530831 is 13803528.

It is a happy number.

It is not a de Polignac number, because 82530831 - 2¹ = 82530829 is a prime.

It is a super-2 number, since 2×82530831² = 13622676131101122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82530821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13611 + ... + 18716.

It is an arithmetic number, because the mean of its divisors is an integer number (7370784).

Almost surely, 2^82530831 is an apocalyptic number.

82530831 is a deficient number, since it is larger than the sum of its proper divisors (35401713).

82530831 is a wasteful number, since it uses less digits than its factorization.

82530831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32390.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 82530831 is about 9084.6480944503. The cubic root of 82530831 is about 435.3836066543.

The spelling of 82530831 in words is "eighty-two million, five hundred thirty thousand, eight hundred thirty-one".