12619879 has 2 divisors, whose sum is σ = 12619880. Its totient is φ = 12619878.

The previous prime is 12619877. The next prime is 12619889. The reversal of 12619879 is 97891621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12619879 - 2¹ = 12619877 is a prime.

It is a super-2 number, since 2×12619879² = 318522691949282, which contains 22 as substring.

Together with 12619877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12619877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309939 + 6309940.

It is an arithmetic number, because the mean of its divisors is an integer number (6309940).

Almost surely, 2^12619879 is an apocalyptic number.

12619879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12619879 is an equidigital number, since it uses as much as digits as its factorization.

12619879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 12619879 is about 3552.4469031922. The cubic root of 12619879 is about 232.8189879038.

The spelling of 12619879 in words is "twelve million, six hundred nineteen thousand, eight hundred seventy-nine".