99865033 has 2 divisors, whose sum is σ = 99865034. Its totient is φ = 99865032.

The previous prime is 99865001. The next prime is 99865039. The reversal of 99865033 is 33056899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60964864 + 38900169 = 7808^2 + 6237^2 .

It is an emirp because it is prime and its reverse (33056899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99865033 - 2⁵ = 99865001 is a prime.

It is not a weakly prime, because it can be changed into another prime (99865039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49932516 + 49932517.

It is an arithmetic number, because the mean of its divisors is an integer number (49932517).

Almost surely, 2^99865033 is an apocalyptic number.

It is an amenable number.

99865033 is a deficient number, since it is larger than the sum of its proper divisors (1).

99865033 is an equidigital number, since it uses as much as digits as its factorization.

99865033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 99865033 is about 9993.2493714507. The cubic root of 99865033 is about 463.9499689045.

The spelling of 99865033 in words is "ninety-nine million, eight hundred sixty-five thousand, thirty-three".