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99995899 is a prime number
BaseRepresentation
bin1011111010111…
…01000011111011
320222011022120211
411331131003323
5201044332044
613531131551
72322644143
oct575350373
9228138524
1099995899
1151499443
12295a3bb7
1317941993
14d3cd923
158ba3634
hex5f5d0fb

99995899 has 2 divisors, whose sum is σ = 99995900. Its totient is φ = 99995898.

The previous prime is 99995893. The next prime is 99995923. The reversal of 99995899 is 99859999.

It is a weak prime.

It is an emirp because it is prime and its reverse (99859999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99995899 - 23 = 99995891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99995891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49997949 + 49997950.

It is an arithmetic number, because the mean of its divisors is an integer number (49997950).

Almost surely, 299995899 is an apocalyptic number.

99995899 is a deficient number, since it is larger than the sum of its proper divisors (1).

99995899 is an equidigital number, since it uses as much as digits as its factorization.

99995899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21257640, while the sum is 67.

The square root of 99995899 is about 9999.7949478977. The cubic root of 99995899 is about 464.1525382226.

The spelling of 99995899 in words is "ninety-nine million, nine hundred ninety-five thousand, eight hundred ninety-nine".