999434804 has 12 divisors (see below), whose sum is σ = 1749400128. Its totient is φ = 499606200.

The previous prime is 999434803. The next prime is 999434857. The reversal of 999434804 is 408434999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999434803) 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, 5612 + ... + 45059.

It is an arithmetic number, because the mean of its divisors is an integer number (145783344).

Almost surely, 2^999434804 is an apocalyptic number.

It is an amenable number.

999434804 is a deficient number, since it is larger than the sum of its proper divisors (749965324).

999434804 is a wasteful number, since it uses less digits than its factorization.

999434804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55606 (or 55604 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 999434804 is about 31613.8388051815. The cubic root of 999434804 is about 999.8115658281.

The spelling of 999434804 in words is "nine hundred ninety-nine million, four hundred thirty-four thousand, eight hundred four".