999900662 has 32 divisors (see below), whose sum is σ = 1612431360. Its totient is φ = 463381120.

The previous prime is 999900659. The next prime is 999900667. The reversal of 999900662 is 266009999.

It is a self number, because there is not a number n which added to its sum of digits gives 999900662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999900667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694139 + ... + 695577.

It is an arithmetic number, because the mean of its divisors is an integer number (50388480).

Almost surely, 2^999900662 is an apocalyptic number.

999900662 is a deficient number, since it is larger than the sum of its proper divisors (612530698).

999900662 is a wasteful number, since it uses less digits than its factorization.

999900662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 999900662 is about 31621.2058909840. The cubic root of 999900662 is about 999.9668862368.

The spelling of 999900662 in words is "nine hundred ninety-nine million, nine hundred thousand, six hundred sixty-two".