74608399 has 2 divisors, whose sum is σ = 74608400. Its totient is φ = 74608398.

The previous prime is 74608379. The next prime is 74608403. The reversal of 74608399 is 99380647.

It is a strong prime.

It is an emirp because it is prime and its reverse (99380647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74608399 - 2⁹ = 74607887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74608349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37304199 + 37304200.

It is an arithmetic number, because the mean of its divisors is an integer number (37304200).

Almost surely, 2^74608399 is an apocalyptic number.

74608399 is a deficient number, since it is larger than the sum of its proper divisors (1).

74608399 is an equidigital number, since it uses as much as digits as its factorization.

74608399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 74608399 is about 8637.6153537883. The cubic root of 74608399 is about 420.9810757626.

The spelling of 74608399 in words is "seventy-four million, six hundred eight thousand, three hundred ninety-nine".