99595217 has 2 divisors, whose sum is σ = 99595218. Its totient is φ = 99595216.

The previous prime is 99595211. The next prime is 99595247. The reversal of 99595217 is 71259599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78074896 + 21520321 = 8836^2 + 4639^2 .

It is a cyclic number.

It is not a de Polignac number, because 99595217 - 2¹⁰ = 99594193 is a prime.

It is not a weakly prime, because it can be changed into another prime (99595211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49797608 + 49797609.

It is an arithmetic number, because the mean of its divisors is an integer number (49797609).

Almost surely, 2^99595217 is an apocalyptic number.

It is an amenable number.

99595217 is a deficient number, since it is larger than the sum of its proper divisors (1).

99595217 is an equidigital number, since it uses as much as digits as its factorization.

99595217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 255150, while the sum is 47.

The square root of 99595217 is about 9979.7403272831. The cubic root of 99595217 is about 463.5317576816.

The spelling of 99595217 in words is "ninety-nine million, five hundred ninety-five thousand, two hundred seventeen".