999506730 has 32 divisors (see below), whose sum is σ = 2399716224. Its totient is φ = 266435136.

The previous prime is 999506713. The next prime is 999506803. The reversal of 999506730 is 37605999.

It is a happy number.

999506730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 999506730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111267 + ... + 119913.

It is an arithmetic number, because the mean of its divisors is an integer number (74991132).

Almost surely, 2^999506730 is an apocalyptic number.

999506730 is an abundant number, since it is smaller than the sum of its proper divisors (1400209494).

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

999506730 is a wasteful number, since it uses less digits than its factorization.

999506730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12510.

The product of its (nonzero) digits is 459270, while the sum is 48.

The square root of 999506730 is about 31614.9763561512. The cubic root of 999506730 is about 999.8355496242.

The spelling of 999506730 in words is "nine hundred ninety-nine million, five hundred six thousand, seven hundred thirty".