12626491 has 8 divisors (see below), whose sum is σ = 12854720. Its totient is φ = 12400128.

The previous prime is 12626489. The next prime is 12626501. The reversal of 12626491 is 19462621.

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 12626491 - 2¹ = 12626489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12626191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21595 + ... + 22171.

It is an arithmetic number, because the mean of its divisors is an integer number (1606840).

Almost surely, 2^12626491 is an apocalyptic number.

12626491 is a deficient number, since it is larger than the sum of its proper divisors (228229).

12626491 is an equidigital number, since it uses as much as digits as its factorization.

12626491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 5184, while the sum is 31.

The square root of 12626491 is about 3553.3774074815. The cubic root of 12626491 is about 232.8596414996.

The spelling of 12626491 in words is "twelve million, six hundred twenty-six thousand, four hundred ninety-one".