12270979 has 16 divisors (see below), whose sum is σ = 14860800. Its totient is φ = 9897984.

The previous prime is 12270971. The next prime is 12271003. The reversal of 12270979 is 97907221.

It is a cyclic number.

It is not a de Polignac number, because 12270979 - 2³ = 12270971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12270971) 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, 34002 + ... + 34360.

It is an arithmetic number, because the mean of its divisors is an integer number (928800).

Almost surely, 2^12270979 is an apocalyptic number.

12270979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12270979 is a deficient number, since it is larger than the sum of its proper divisors (2589821).

12270979 is a wasteful number, since it uses less digits than its factorization.

12270979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 12270979 is about 3502.9957179534. The cubic root of 12270979 is about 230.6533345768.

The spelling of 12270979 in words is "twelve million, two hundred seventy thousand, nine hundred seventy-nine".