74190793 has 2 divisors, whose sum is σ = 74190794. Its totient is φ = 74190792.

The previous prime is 74190773. The next prime is 74190799. The reversal of 74190793 is 39709147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40411449 + 33779344 = 6357^2 + 5812^2 .

It is an emirp because it is prime and its reverse (39709147) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74190793 is a prime.

It is not a weakly prime, because it can be changed into another prime (74190799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37095396 + 37095397.

It is an arithmetic number, because the mean of its divisors is an integer number (37095397).

Almost surely, 2^74190793 is an apocalyptic number.

It is an amenable number.

74190793 is a deficient number, since it is larger than the sum of its proper divisors (1).

74190793 is an equidigital number, since it uses as much as digits as its factorization.

74190793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 74190793 is about 8613.4077460666. The cubic root of 74190793 is about 420.1941524882.

The spelling of 74190793 in words is "seventy-four million, one hundred ninety thousand, seven hundred ninety-three".