996399136 has 12 divisors (see below), whose sum is σ = 1961660862. Its totient is φ = 498199552.

The previous prime is 996399133. The next prime is 996399137. The reversal of 996399136 is 631993699.

It can be written as a sum of positive squares in only one way, i.e., 688747536 + 307651600 = 26244^2 + 17540^2 .

It is a super-2 number, since 2×996399136² = 1985622476443092992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (996399133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15568705 + ... + 15568768.

Almost surely, 2^996399136 is an apocalyptic number.

It is an amenable number.

996399136 is a deficient number, since it is larger than the sum of its proper divisors (965261726).

996399136 is a wasteful number, since it uses less digits than its factorization.

996399136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31137483 (or 31137475 counting only the distinct ones).

The product of its digits is 2125764, while the sum is 55.

The square root of 996399136 is about 31565.7905967837. The cubic root of 996399136 is about 998.7982684197.

The spelling of 996399136 in words is "nine hundred ninety-six million, three hundred ninety-nine thousand, one hundred thirty-six".