99975923 has 2 divisors, whose sum is σ = 99975924. Its totient is φ = 99975922.

The previous prime is 99975857. The next prime is 99975937. The reversal of 99975923 is 32957999.

It is a strong prime.

It is an emirp because it is prime and its reverse (32957999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99975923 - 2¹² = 99971827 is a prime.

It is not a weakly prime, because it can be changed into another prime (99975943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987961 + 49987962.

It is an arithmetic number, because the mean of its divisors is an integer number (49987962).

Almost surely, 2^99975923 is an apocalyptic number.

99975923 is a deficient number, since it is larger than the sum of its proper divisors (1).

99975923 is an equidigital number, since it uses as much as digits as its factorization.

99975923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1377810, while the sum is 53.

The square root of 99975923 is about 9998.7960775285. The cubic root of 99975923 is about 464.1216285264.

The spelling of 99975923 in words is "ninety-nine million, nine hundred seventy-five thousand, nine hundred twenty-three".