99974423 has 2 divisors, whose sum is σ = 99974424. Its totient is φ = 99974422.

The previous prime is 99974419. The next prime is 99974429. The reversal of 99974423 is 32447999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99974423 - 2² = 99974419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99974429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987211 + 49987212.

It is an arithmetic number, because the mean of its divisors is an integer number (49987212).

Almost surely, 2^99974423 is an apocalyptic number.

99974423 is a deficient number, since it is larger than the sum of its proper divisors (1).

99974423 is an equidigital number, since it uses as much as digits as its factorization.

99974423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 47.

The square root of 99974423 is about 9998.7210682167. The cubic root of 99974423 is about 464.1193073478.

The spelling of 99974423 in words is "ninety-nine million, nine hundred seventy-four thousand, four hundred twenty-three".