99874123 has 2 divisors, whose sum is σ = 99874124. Its totient is φ = 99874122.

The previous prime is 99874087. The next prime is 99874129. The reversal of 99874123 is 32147899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99874123 - 2⁹ = 99873611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99874123.

It is not a weakly prime, because it can be changed into another prime (99874129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49937061 + 49937062.

It is an arithmetic number, because the mean of its divisors is an integer number (49937062).

Almost surely, 2^99874123 is an apocalyptic number.

99874123 is a deficient number, since it is larger than the sum of its proper divisors (1).

99874123 is an equidigital number, since it uses as much as digits as its factorization.

99874123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 99874123 is about 9993.7041681251. The cubic root of 99874123 is about 463.9640451604.

The spelling of 99874123 in words is "ninety-nine million, eight hundred seventy-four thousand, one hundred twenty-three".