82469431 has 24 divisors (see below), whose sum is σ = 97708464. Its totient is φ = 68789760.

The previous prime is 82469423. The next prime is 82469437. The reversal of 82469431 is 13496428.

It is not a de Polignac number, because 82469431 - 2³ = 82469423 is a prime.

It is a super-2 number, since 2×82469431² = 13602414098927522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82469437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 525205 + ... + 525361.

It is an arithmetic number, because the mean of its divisors is an integer number (4071186).

Almost surely, 2^82469431 is an apocalyptic number.

82469431 is a deficient number, since it is larger than the sum of its proper divisors (15239033).

82469431 is a wasteful number, since it uses less digits than its factorization.

82469431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 238 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 82469431 is about 9081.2681383164. The cubic root of 82469431 is about 435.2756099004.

The spelling of 82469431 in words is "eighty-two million, four hundred sixty-nine thousand, four hundred thirty-one".