74234399 has 2 divisors, whose sum is σ = 74234400. Its totient is φ = 74234398.

The previous prime is 74234389. The next prime is 74234401. The reversal of 74234399 is 99343247.

It is a strong prime.

It is an emirp because it is prime and its reverse (99343247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74234399 - 2⁸ = 74234143 is a prime.

It is a Sophie Germain prime.

Together with 74234401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74234309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37117199 + 37117200.

It is an arithmetic number, because the mean of its divisors is an integer number (37117200).

Almost surely, 2^74234399 is an apocalyptic number.

74234399 is a deficient number, since it is larger than the sum of its proper divisors (1).

74234399 is an equidigital number, since it uses as much as digits as its factorization.

74234399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 74234399 is about 8615.9386604130. The cubic root of 74234399 is about 420.2764600847.

The spelling of 74234399 in words is "seventy-four million, two hundred thirty-four thousand, three hundred ninety-nine".