1079399915 has 16 divisors (see below), whose sum is σ = 1416994560. Its totient is φ = 782817120.

The previous prime is 1079399911. The next prime is 1079399939. The reversal of 1079399915 is 5199939701.

It is a happy number.

It is not a de Polignac number, because 1079399915 - 2² = 1079399911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1079399911) 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, 7589 + ... + 47078.

It is an arithmetic number, because the mean of its divisors is an integer number (88562160).

Almost surely, 2^1079399915 is an apocalyptic number.

1079399915 is a deficient number, since it is larger than the sum of its proper divisors (337594645).

1079399915 is a wasteful number, since it uses less digits than its factorization.

1079399915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55042.

The product of its (nonzero) digits is 688905, while the sum is 53.

The square root of 1079399915 is about 32854.2221791964. Note that the first 3 decimals coincide. The cubic root of 1079399915 is about 1025.7955085568.

The spelling of 1079399915 in words is "one billion, seventy-nine million, three hundred ninety-nine thousand, nine hundred fifteen".