12679551 has 8 divisors (see below), whose sum is σ = 18784560. Its totient is φ = 8453016.

The previous prime is 12679543. The next prime is 12679571. The reversal of 12679551 is 15597621.

It is not a de Polignac number, because 12679551 - 2³ = 12679543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12679531) 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, 234780 + ... + 234833.

It is an arithmetic number, because the mean of its divisors is an integer number (2348070).

Almost surely, 2^12679551 is an apocalyptic number.

12679551 is a deficient number, since it is larger than the sum of its proper divisors (6105009).

12679551 is an equidigital number, since it uses as much as digits as its factorization.

12679551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469622 (or 469616 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 12679551 is about 3560.8357165138. The cubic root of 12679551 is about 233.1853658239.

The spelling of 12679551 in words is "twelve million, six hundred seventy-nine thousand, five hundred fifty-one".