12624091 has 4 divisors (see below), whose sum is σ = 12749184. Its totient is φ = 12499000.

The previous prime is 12624089. The next prime is 12624103. The reversal of 12624091 is 19042621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19042621 = 13 ⋅1464817.

It is a cyclic number.

It is not a de Polignac number, because 12624091 - 2¹ = 12624089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12624061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62395 + ... + 62596.

It is an arithmetic number, because the mean of its divisors is an integer number (3187296).

Almost surely, 2^12624091 is an apocalyptic number.

12624091 is a deficient number, since it is larger than the sum of its proper divisors (125093).

12624091 is a wasteful number, since it uses less digits than its factorization.

12624091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125092.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12624091 is about 3553.0396845518. The cubic root of 12624091 is about 232.8448868447.

The spelling of 12624091 in words is "twelve million, six hundred twenty-four thousand, ninety-one".