74344691 has 2 divisors, whose sum is σ = 74344692. Its totient is φ = 74344690.

The previous prime is 74344651. The next prime is 74344693. The reversal of 74344691 is 19644347.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74344691 - 2¹⁴ = 74328307 is a prime.

Together with 74344693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74344693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37172345 + 37172346.

It is an arithmetic number, because the mean of its divisors is an integer number (37172346).

Almost surely, 2^74344691 is an apocalyptic number.

74344691 is a deficient number, since it is larger than the sum of its proper divisors (1).

74344691 is an equidigital number, since it uses as much as digits as its factorization.

74344691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 74344691 is about 8622.3367482371. The cubic root of 74344691 is about 420.4844956894.

The spelling of 74344691 in words is "seventy-four million, three hundred forty-four thousand, six hundred ninety-one".