12623381 has 16 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 11618880.

The previous prime is 12623357. The next prime is 12623383. The reversal of 12623381 is 18332621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12623381 is a prime.

It is a super-2 number, since 2×12623381² = 318699495742322, 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 12623381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12623383) 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, 65996 + ... + 66186.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^12623381 is an apocalyptic number.

It is an amenable number.

12623381 is a deficient number, since it is larger than the sum of its proper divisors (1062379).

12623381 is a wasteful number, since it uses less digits than its factorization.

12623381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its digits is 1728, while the sum is 26.

The square root of 12623381 is about 3552.9397686986. The cubic root of 12623381 is about 232.8405215675.

The spelling of 12623381 in words is "twelve million, six hundred twenty-three thousand, three hundred eighty-one".