99696251 has 2 divisors, whose sum is σ = 99696252. Its totient is φ = 99696250.

The previous prime is 99696227. The next prime is 99696277. The reversal of 99696251 is 15269699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99696251 - 2⁶ = 99696187 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99696196 and 99696205.

It is not a weakly prime, because it can be changed into another prime (99696281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49848125 + 49848126.

It is an arithmetic number, because the mean of its divisors is an integer number (49848126).

Almost surely, 2^99696251 is an apocalyptic number.

99696251 is a deficient number, since it is larger than the sum of its proper divisors (1).

99696251 is an equidigital number, since it uses as much as digits as its factorization.

99696251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 47.

The square root of 99696251 is about 9984.8009995192. The cubic root of 99696251 is about 463.6884474022.

The spelling of 99696251 in words is "ninety-nine million, six hundred ninety-six thousand, two hundred fifty-one".