999296520 has 32 divisors (see below), whose sum is σ = 2997889920. Its totient is φ = 266479040.

The previous prime is 999296513. The next prime is 999296527. The reversal of 999296520 is 25692999.

It is an interprime number because it is at equal distance from previous prime (999296513) and next prime (999296527).

It is a super-2 number, since 2×999296520² = 1997187069768220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999296527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4163616 + ... + 4163855.

It is an arithmetic number, because the mean of its divisors is an integer number (93684060).

Almost surely, 2^999296520 is an apocalyptic number.

It is an amenable number.

999296520 is an abundant number, since it is smaller than the sum of its proper divisors (1998593400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999296520 is a wasteful number, since it uses less digits than its factorization.

999296520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8327485 (or 8327481 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 51.

The square root of 999296520 is about 31611.6516493523. The cubic root of 999296520 is about 999.7654516580.

The spelling of 999296520 in words is "nine hundred ninety-nine million, two hundred ninety-six thousand, five hundred twenty".