74389373 has 2 divisors, whose sum is σ = 74389374. Its totient is φ = 74389372.

The previous prime is 74389349. The next prime is 74389459. The reversal of 74389373 is 37398347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39967684 + 34421689 = 6322^2 + 5867^2 .

It is a cyclic number.

It is not a de Polignac number, because 74389373 - 2¹² = 74385277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74389303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37194686 + 37194687.

It is an arithmetic number, because the mean of its divisors is an integer number (37194687).

Almost surely, 2^74389373 is an apocalyptic number.

It is an amenable number.

74389373 is a deficient number, since it is larger than the sum of its proper divisors (1).

74389373 is an equidigital number, since it uses as much as digits as its factorization.

74389373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 44.

The square root of 74389373 is about 8624.9274199845. The cubic root of 74389373 is about 420.5687174645.

The spelling of 74389373 in words is "seventy-four million, three hundred eighty-nine thousand, three hundred seventy-three".