12979768 has 8 divisors (see below), whose sum is σ = 24337080. Its totient is φ = 6489880.

The previous prime is 12979727. The next prime is 12979777. The reversal of 12979768 is 86797921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811228 + ... + 811243.

It is an arithmetic number, because the mean of its divisors is an integer number (3042135).

Almost surely, 2^12979768 is an apocalyptic number.

It is an amenable number.

12979768 is a deficient number, since it is larger than the sum of its proper divisors (11357312).

12979768 is a wasteful number, since it uses less digits than its factorization.

12979768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622477 (or 1622473 counting only the distinct ones).

The product of its digits is 381024, while the sum is 49.

The square root of 12979768 is about 3602.7445093984. The cubic root of 12979768 is about 235.0114254291.

It can be divided in two parts, 129 and 79768, that added together give a palindrome (79897).

The spelling of 12979768 in words is "twelve million, nine hundred seventy-nine thousand, seven hundred sixty-eight".