996637499 has 16 divisors (see below), whose sum is σ = 1190730240. Its totient is φ = 822156960.

The previous prime is 996637489. The next prime is 996637501. The reversal of 996637499 is 994736699.

It is a cyclic number.

It is not a de Polignac number, because 996637499 - 2²⁸ = 728202043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (996637489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50627 + ... + 67500.

It is an arithmetic number, because the mean of its divisors is an integer number (74420640).

Almost surely, 2^996637499 is an apocalyptic number.

996637499 is a deficient number, since it is larger than the sum of its proper divisors (194092741).

996637499 is a wasteful number, since it uses less digits than its factorization.

996637499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118210.

The product of its digits is 19840464, while the sum is 62.

The square root of 996637499 is about 31569.5660248918. The cubic root of 996637499 is about 998.8779077132.

The spelling of 996637499 in words is "nine hundred ninety-six million, six hundred thirty-seven thousand, four hundred ninety-nine".