996199839 has 6 divisors (see below), whose sum is σ = 1438955336. Its totient is φ = 664133220.

The previous prime is 996199741. The next prime is 996199861. The reversal of 996199839 is 938991699.

996199839 is a `hidden beast` number, since 9 + 9 + 619 + 9 + 8 + 3 + 9 = 666.

It is not a de Polignac number, because 996199839 - 2¹² = 996195743 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 (996192839) 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, 55344427 + ... + 55344444.

Almost surely, 2^996199839 is an apocalyptic number.

996199839 is a deficient number, since it is larger than the sum of its proper divisors (442755497).

996199839 is a wasteful number, since it uses less digits than its factorization.

996199839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110688877 (or 110688874 counting only the distinct ones).

The product of its digits is 8503056, while the sum is 63.

The square root of 996199839 is about 31562.6335878361. The cubic root of 996199839 is about 998.7316716901.

The spelling of 996199839 in words is "nine hundred ninety-six million, one hundred ninety-nine thousand, eight hundred thirty-nine".