12496979 has 4 divisors (see below), whose sum is σ = 13633080. Its totient is φ = 11360880.

The previous prime is 12496973. The next prime is 12496993. The reversal of 12496979 is 97969421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12496979 - 2⁴ = 12496963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12496973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568034 + ... + 568055.

It is an arithmetic number, because the mean of its divisors is an integer number (3408270).

Almost surely, 2^12496979 is an apocalyptic number.

12496979 is a deficient number, since it is larger than the sum of its proper divisors (1136101).

12496979 is a wasteful number, since it uses less digits than its factorization.

12496979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136100.

The product of its digits is 244944, while the sum is 47.

The square root of 12496979 is about 3535.1066461990. The cubic root of 12496979 is about 232.0607438544.

It can be divided in two parts, 1249 and 6979, that added together give a palindrome (8228).

The spelling of 12496979 in words is "twelve million, four hundred ninety-six thousand, nine hundred seventy-nine".