99081923 has 2 divisors, whose sum is σ = 99081924. Its totient is φ = 99081922.

The previous prime is 99081889. The next prime is 99081937. The reversal of 99081923 is 32918099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99081923 - 2⁸ = 99081667 is a prime.

It is not a weakly prime, because it can be changed into another prime (99081943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49540961 + 49540962.

It is an arithmetic number, because the mean of its divisors is an integer number (49540962).

Almost surely, 2^99081923 is an apocalyptic number.

99081923 is a deficient number, since it is larger than the sum of its proper divisors (1).

99081923 is an equidigital number, since it uses as much as digits as its factorization.

99081923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 99081923 is about 9953.9903054001. The cubic root of 99081923 is about 462.7340688090.

The spelling of 99081923 in words is "ninety-nine million, eighty-one thousand, nine hundred twenty-three".