999318620 has 12 divisors (see below), whose sum is σ = 2098569144. Its totient is φ = 399727440.

The previous prime is 999318587. The next prime is 999318629. The reversal of 999318620 is 26813999.

999318620 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999318629) 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, 24982946 + ... + 24982985.

It is an arithmetic number, because the mean of its divisors is an integer number (174880762).

Almost surely, 2^999318620 is an apocalyptic number.

It is an amenable number.

999318620 is an abundant number, since it is smaller than the sum of its proper divisors (1099250524).

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

999318620 is a wasteful number, since it uses less digits than its factorization.

999318620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49965940 (or 49965938 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 999318620 is about 31612.0012020751. The cubic root of 999318620 is about 999.7728217273.

The spelling of 999318620 in words is "nine hundred ninety-nine million, three hundred eighteen thousand, six hundred twenty".