373974389 has 2 divisors, whose sum is σ = 373974390. Its totient is φ = 373974388.

The previous prime is 373974383. The next prime is 373974409. The reversal of 373974389 is 983479373.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308283364 + 65691025 = 17558^2 + 8105^2 .

It is a cyclic number.

It is not a de Polignac number, because 373974389 - 2⁴ = 373974373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 373974389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373974383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186987194 + 186987195.

It is an arithmetic number, because the mean of its divisors is an integer number (186987195).

Almost surely, 2^373974389 is an apocalyptic number.

It is an amenable number.

373974389 is a deficient number, since it is larger than the sum of its proper divisors (1).

373974389 is an equidigital number, since it uses as much as digits as its factorization.

373974389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 53.

The square root of 373974389 is about 19338.4174378360. The cubic root of 373974389 is about 720.4667684498.

The spelling of 373974389 in words is "three hundred seventy-three million, nine hundred seventy-four thousand, three hundred eighty-nine".