999900076 has 18 divisors (see below), whose sum is σ = 2035511268. Its totient is φ = 428528520.

The previous prime is 999900059. The next prime is 999900079. The reversal of 999900076 is 670009999.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (999900079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2550570 + ... + 2550961.

Almost surely, 2^999900076 is an apocalyptic number.

It is an amenable number.

999900076 is an abundant number, since it is smaller than the sum of its proper divisors (1035611192).

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

999900076 is a wasteful number, since it uses less digits than its factorization.

999900076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101549 (or 5101540 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 49.

The square root of 999900076 is about 31621.1966250488. The cubic root of 999900076 is about 999.9666908905.

The spelling of 999900076 in words is "nine hundred ninety-nine million, nine hundred thousand, seventy-six".