994921988 has 12 divisors (see below), whose sum is σ = 1742958672. Its totient is φ = 496933800.

The previous prime is 994921973. The next prime is 994921999. The reversal of 994921988 is 889129499.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127538 + ... + 135113.

It is an arithmetic number, because the mean of its divisors is an integer number (145246556).

Almost surely, 2^994921988 is an apocalyptic number.

It is an amenable number.

994921988 is a deficient number, since it is larger than the sum of its proper divisors (748036684).

994921988 is a wasteful number, since it uses less digits than its factorization.

994921988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263602 (or 263600 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 59.

The square root of 994921988 is about 31542.3839936045. The cubic root of 994921988 is about 998.3044560890.

The spelling of 994921988 in words is "nine hundred ninety-four million, nine hundred twenty-one thousand, nine hundred eighty-eight".