1396118879 has 16 divisors (see below), whose sum is σ = 1503290880. Its totient is φ = 1292408640.

The previous prime is 1396118873. The next prime is 1396118887. The reversal of 1396118879 is 9788116931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396118879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1396118879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396118873) 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, 973547 + ... + 974979.

It is an arithmetic number, because the mean of its divisors is an integer number (93955680).

Almost surely, 2^1396118879 is an apocalyptic number.

1396118879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1396118879 is a deficient number, since it is larger than the sum of its proper divisors (107172001).

1396118879 is a wasteful number, since it uses less digits than its factorization.

1396118879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590.

The product of its digits is 653184, while the sum is 53.

The square root of 1396118879 is about 37364.6742124162. The cubic root of 1396118879 is about 1117.6542312574.

The spelling of 1396118879 in words is "one billion, three hundred ninety-six million, one hundred eighteen thousand, eight hundred seventy-nine".