999032896 has 28 divisors (see below), whose sum is σ = 2030813820. Its totient is φ = 487331840.

The previous prime is 999032891. The next prime is 999032941. The reversal of 999032896 is 698230999.

It can be written as a sum of positive squares in 2 ways, for example, as 215032896 + 784000000 = 14664^2 + 28000^2 .

It is not an unprimeable number, because it can be changed into a prime (999032891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187741 + ... + 192988.

It is an arithmetic number, because the mean of its divisors is an integer number (72529065).

Almost surely, 2^999032896 is an apocalyptic number.

It is an amenable number.

999032896 is an abundant number, since it is smaller than the sum of its proper divisors (1031780924).

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

999032896 is a wasteful number, since it uses less digits than its factorization.

999032896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380782 (or 380772 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 55.

The square root of 999032896 is about 31607.4816459648. The cubic root of 999032896 is about 999.6775280230.

The spelling of 999032896 in words is "nine hundred ninety-nine million, thirty-two thousand, eight hundred ninety-six".