373621289 has 2 divisors, whose sum is σ = 373621290. Its totient is φ = 373621288.

The previous prime is 373621271. The next prime is 373621309. The reversal of 373621289 is 982126373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278890000 + 94731289 = 16700^2 + 9733^2 .

It is an emirp because it is prime and its reverse (982126373) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 373621289 - 2²⁸ = 105185833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (373621249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186810644 + 186810645.

It is an arithmetic number, because the mean of its divisors is an integer number (186810645).

Almost surely, 2^373621289 is an apocalyptic number.

It is an amenable number.

373621289 is a deficient number, since it is larger than the sum of its proper divisors (1).

373621289 is an equidigital number, since it uses as much as digits as its factorization.

373621289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 373621289 is about 19329.2857860812. The cubic root of 373621289 is about 720.2399463900.

The spelling of 373621289 in words is "three hundred seventy-three million, six hundred twenty-one thousand, two hundred eighty-nine".