74045393 has 2 divisors, whose sum is σ = 74045394. Its totient is φ = 74045392.

The previous prime is 74045383. The next prime is 74045429. The reversal of 74045393 is 39354047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52301824 + 21743569 = 7232^2 + 4663^2 .

It is an emirp because it is prime and its reverse (39354047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74045393 - 2⁸ = 74045137 is a prime.

It is not a weakly prime, because it can be changed into another prime (74045333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37022696 + 37022697.

It is an arithmetic number, because the mean of its divisors is an integer number (37022697).

Almost surely, 2^74045393 is an apocalyptic number.

It is an amenable number.

74045393 is a deficient number, since it is larger than the sum of its proper divisors (1).

74045393 is an equidigital number, since it uses as much as digits as its factorization.

74045393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 74045393 is about 8604.9632770861. The cubic root of 74045393 is about 419.9194724675.

The spelling of 74045393 in words is "seventy-four million, forty-five thousand, three hundred ninety-three".