99963697 has 2 divisors, whose sum is σ = 99963698. Its totient is φ = 99963696.

The previous prime is 99963683. The next prime is 99963707. The reversal of 99963697 is 79636999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99920016 + 43681 = 9996^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 99963697 - 2⁷ = 99963569 is a prime.

It is not a weakly prime, because it can be changed into another prime (99963607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49981848 + 49981849.

It is an arithmetic number, because the mean of its divisors is an integer number (49981849).

Almost surely, 2^99963697 is an apocalyptic number.

It is an amenable number.

99963697 is a deficient number, since it is larger than the sum of its proper divisors (1).

99963697 is an equidigital number, since it uses as much as digits as its factorization.

99963697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4960116, while the sum is 58.

The square root of 99963697 is about 9998.1846852316. The cubic root of 99963697 is about 464.1027086966.

The spelling of 99963697 in words is "ninety-nine million, nine hundred sixty-three thousand, six hundred ninety-seven".