996694957 has 4 divisors (see below), whose sum is σ = 996795900. Its totient is φ = 996594016.

The previous prime is 996694943. The next prime is 996694999. The reversal of 996694957 is 759496699.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 701508196 + 295186761 = 26486^2 + 17181^2 .

It is a cyclic number.

It is not a de Polignac number, because 996694957 - 2¹⁵ = 996662189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996694927) 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, 33832 + ... + 56017.

It is an arithmetic number, because the mean of its divisors is an integer number (249198975).

Almost surely, 2^996694957 is an apocalyptic number.

It is an amenable number.

996694957 is a deficient number, since it is larger than the sum of its proper divisors (100943).

996694957 is a wasteful number, since it uses less digits than its factorization.

996694957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100942.

The product of its digits is 33067440, while the sum is 64.

The square root of 996694957 is about 31570.4760337883. The cubic root of 996694957 is about 998.8971030655.

The spelling of 996694957 in words is "nine hundred ninety-six million, six hundred ninety-four thousand, nine hundred fifty-seven".