12963431 has 8 divisors (see below), whose sum is σ = 14338464. Its totient is φ = 11642400.

The previous prime is 12963427. The next prime is 12963437. The reversal of 12963431 is 13436921.

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 12963431 - 2² = 12963427 is a prime.

It is a super-2 number, since 2×12963431² = 336101086583522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12963394 and 12963403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12963437) 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, 12995 + ... + 13956.

It is an arithmetic number, because the mean of its divisors is an integer number (1792308).

Almost surely, 2^12963431 is an apocalyptic number.

12963431 is a deficient number, since it is larger than the sum of its proper divisors (1375033).

12963431 is a wasteful number, since it uses less digits than its factorization.

12963431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27001.

The product of its digits is 3888, while the sum is 29.

The square root of 12963431 is about 3600.4764962432. The cubic root of 12963431 is about 234.9127848987.

The spelling of 12963431 in words is "twelve million, nine hundred sixty-three thousand, four hundred thirty-one".