12872431 has 8 divisors (see below), whose sum is σ = 15123024. Its totient is φ = 10801920.

The previous prime is 12872429. The next prime is 12872441. The reversal of 12872431 is 13427821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12872431 - 2¹ = 12872429 is a prime.

It is a super-2 number, since 2×12872431² = 331398959699522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12872431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44866 + ... + 45151.

It is an arithmetic number, because the mean of its divisors is an integer number (1890378).

Almost surely, 2^12872431 is an apocalyptic number.

12872431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12872431 is a deficient number, since it is larger than the sum of its proper divisors (2250593).

12872431 is a wasteful number, since it uses less digits than its factorization.

12872431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90041.

The product of its digits is 2688, while the sum is 28.

The square root of 12872431 is about 3587.8170243199. The cubic root of 12872431 is about 234.3618175934.

The spelling of 12872431 in words is "twelve million, eight hundred seventy-two thousand, four hundred thirty-one".