999328379 has 16 divisors (see below), whose sum is σ = 1149977088. Its totient is φ = 850673472.

The previous prime is 999328373. The next prime is 999328397. The reversal of 999328379 is 973823999.

It is a cyclic number.

It is not a de Polignac number, because 999328379 - 2²⁸ = 730892923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999328373) 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, 1054784 + ... + 1055730.

It is an arithmetic number, because the mean of its divisors is an integer number (71873568).

Almost surely, 2^999328379 is an apocalyptic number.

999328379 is a deficient number, since it is larger than the sum of its proper divisors (150648709).

999328379 is a wasteful number, since it uses less digits than its factorization.

With its successor (999328380) it forms an eRAP, since the sums of their prime factors are consecutive (1834 and 1835).

999328379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834.

The product of its digits is 6613488, while the sum is 59.

The square root of 999328379 is about 31612.1555576332. The cubic root of 999328379 is about 999.7760761952.

The spelling of 999328379 in words is "nine hundred ninety-nine million, three hundred twenty-eight thousand, three hundred seventy-nine".