99932879 has 2 divisors, whose sum is σ = 99932880. Its totient is φ = 99932878.

The previous prime is 99932827. The next prime is 99932897. The reversal of 99932879 is 97823999.

Together with next prime (99932897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99932879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99932179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49966439 + 49966440.

It is an arithmetic number, because the mean of its divisors is an integer number (49966440).

Almost surely, 2^99932879 is an apocalyptic number.

99932879 is a deficient number, since it is larger than the sum of its proper divisors (1).

99932879 is an equidigital number, since it uses as much as digits as its factorization.

99932879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 56.

The square root of 99932879 is about 9996.6433866573. The cubic root of 99932879 is about 464.0550107563.

The spelling of 99932879 in words is "ninety-nine million, nine hundred thirty-two thousand, eight hundred seventy-nine".