1479990865 has 8 divisors (see below), whose sum is σ = 1776708648. Its totient is φ = 1183512960.

The previous prime is 1479990851. The next prime is 1479990877. The reversal of 1479990865 is 5680999741.

It can be written as a sum of positive squares in 4 ways, for example, as 34774609 + 1445216256 = 5897^2 + 38016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1479990865 - 2⁷ = 1479990737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46102 + ... + 71311.

It is an arithmetic number, because the mean of its divisors is an integer number (222088581).

Almost surely, 2^1479990865 is an apocalyptic number.

It is an amenable number.

1479990865 is a deficient number, since it is larger than the sum of its proper divisors (296717783).

1479990865 is a wasteful number, since it uses less digits than its factorization.

1479990865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119939.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The square root of 1479990865 is about 38470.6493966504. The cubic root of 1479990865 is about 1139.6014983983.

The spelling of 1479990865 in words is "one billion, four hundred seventy-nine million, nine hundred ninety thousand, eight hundred sixty-five".