12627491 has 4 divisors (see below), whose sum is σ = 12750192. Its totient is φ = 12504792.

The previous prime is 12627469. The next prime is 12627493. The reversal of 12627491 is 19472621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19472621 = 7 ⋅2781803.

It is a cyclic number.

It is not a de Polignac number, because 12627491 - 2¹⁸ = 12365347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12627493) 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, 61196 + ... + 61401.

It is an arithmetic number, because the mean of its divisors is an integer number (3187548).

Almost surely, 2^12627491 is an apocalyptic number.

12627491 is a deficient number, since it is larger than the sum of its proper divisors (122701).

12627491 is a wasteful number, since it uses less digits than its factorization.

12627491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122700.

The product of its digits is 6048, while the sum is 32.

The square root of 12627491 is about 3553.5181158959. The cubic root of 12627491 is about 232.8657887206.

The spelling of 12627491 in words is "twelve million, six hundred twenty-seven thousand, four hundred ninety-one".