99679201 has 2 divisors, whose sum is σ = 99679202. Its totient is φ = 99679200.

The previous prime is 99679169. The next prime is 99679207. The reversal of 99679201 is 10297699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76108176 + 23571025 = 8724^2 + 4855^2 .

It is a cyclic number.

It is not a de Polignac number, because 99679201 - 2⁵ = 99679169 is a prime.

It is a super-2 number, since 2×99679201² = 19871886223996802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99679207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49839600 + 49839601.

It is an arithmetic number, because the mean of its divisors is an integer number (49839601).

Almost surely, 2^99679201 is an apocalyptic number.

It is an amenable number.

99679201 is a deficient number, since it is larger than the sum of its proper divisors (1).

99679201 is an equidigital number, since it uses as much as digits as its factorization.

99679201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 99679201 is about 9983.9471653249. The cubic root of 99679201 is about 463.6620126444.

The spelling of 99679201 in words is "ninety-nine million, six hundred seventy-nine thousand, two hundred one".