999484825 has 18 divisors (see below), whose sum is σ = 1316562746. Its totient is φ = 752547840.

The previous prime is 999484781. The next prime is 999484861. The reversal of 999484825 is 528484999.

It can be written as a sum of positive squares in 9 ways, for example, as 171426649 + 828058176 = 13093^2 + 28776^2 .

It is not a de Polignac number, because 999484825 - 2¹⁵ = 999452057 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 999484825.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61944 + ... + 76393.

Almost surely, 2^999484825 is an apocalyptic number.

It is an amenable number.

999484825 is a deficient number, since it is larger than the sum of its proper divisors (317077921).

999484825 is a wasteful number, since it uses less digits than its factorization.

999484825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138381 (or 138359 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The square root of 999484825 is about 31614.6299203391. The cubic root of 999484825 is about 999.8282455021.

The spelling of 999484825 in words is "nine hundred ninety-nine million, four hundred eighty-four thousand, eight hundred twenty-five".