999479523 has 32 divisors (see below), whose sum is σ = 1544417280. Its totient is φ = 563143680.

The previous prime is 999479501. The next prime is 999479531. The reversal of 999479523 is 325974999.

It is not a de Polignac number, because 999479523 - 2²⁴ = 982702307 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (999479023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1134043 + ... + 1134923.

It is an arithmetic number, because the mean of its divisors is an integer number (48263040).

Almost surely, 2^999479523 is an apocalyptic number.

999479523 is a deficient number, since it is larger than the sum of its proper divisors (544937757).

999479523 is a wasteful number, since it uses less digits than its factorization.

999479523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587.

The product of its digits is 5511240, while the sum is 57.

The square root of 999479523 is about 31614.5460666447. The cubic root of 999479523 is about 999.8264775584.

It can be divided in two parts, 99947952 and 3, that multiplied together give a square (299843856 = 17316²).

The spelling of 999479523 in words is "nine hundred ninety-nine million, four hundred seventy-nine thousand, five hundred twenty-three".