99827279 has 2 divisors, whose sum is σ = 99827280. Its totient is φ = 99827278.

The previous prime is 99827269. The next prime is 99827327. The reversal of 99827279 is 97272899.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99827279 - 2⁸ = 99827023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99827279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99827239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49913639 + 49913640.

It is an arithmetic number, because the mean of its divisors is an integer number (49913640).

Almost surely, 2^99827279 is an apocalyptic number.

99827279 is a deficient number, since it is larger than the sum of its proper divisors (1).

99827279 is an equidigital number, since it uses as much as digits as its factorization.

99827279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 53.

The square root of 99827279 is about 9991.3602177081. The cubic root of 99827279 is about 463.8914960692.

The spelling of 99827279 in words is "ninety-nine million, eight hundred twenty-seven thousand, two hundred seventy-nine".