74923399 has 2 divisors, whose sum is σ = 74923400. Its totient is φ = 74923398.

The previous prime is 74923367. The next prime is 74923421. The reversal of 74923399 is 99332947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74923399 - 2⁵ = 74923367 is a prime.

It is a super-2 number, since 2×74923399² = 11227031435426402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74923319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37461699 + 37461700.

It is an arithmetic number, because the mean of its divisors is an integer number (37461700).

Almost surely, 2^74923399 is an apocalyptic number.

74923399 is a deficient number, since it is larger than the sum of its proper divisors (1).

74923399 is an equidigital number, since it uses as much as digits as its factorization.

74923399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 46.

The square root of 74923399 is about 8655.8303472284. The cubic root of 74923399 is about 421.5727108870.

The spelling of 74923399 in words is "seventy-four million, nine hundred twenty-three thousand, three hundred ninety-nine".