996989942 has 16 divisors (see below), whose sum is σ = 1626162720. Its totient is φ = 455680512.

The previous prime is 996989923. The next prime is 996989951. The reversal of 996989942 is 249989699.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183467 + ... + 188822.

It is an arithmetic number, because the mean of its divisors is an integer number (101635170).

Almost surely, 2^996989942 is an apocalyptic number.

996989942 is a deficient number, since it is larger than the sum of its proper divisors (629172778).

996989942 is a wasteful number, since it uses less digits than its factorization.

996989942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372407.

The product of its digits is 22674816, while the sum is 65.

The square root of 996989942 is about 31575.1475372642. The cubic root of 996989942 is about 998.9956389299.

The spelling of 996989942 in words is "nine hundred ninety-six million, nine hundred eighty-nine thousand, nine hundred forty-two".