380914921 has 2 divisors, whose sum is σ = 380914922. Its totient is φ = 380914920.

The previous prime is 380914901. The next prime is 380914951. The reversal of 380914921 is 129419083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192127321 + 188787600 = 13861^2 + 13740^2 .

It is a cyclic number.

It is not a de Polignac number, because 380914921 - 2⁹ = 380914409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (380914901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190457460 + 190457461.

It is an arithmetic number, because the mean of its divisors is an integer number (190457461).

Almost surely, 2^380914921 is an apocalyptic number.

It is an amenable number.

380914921 is a deficient number, since it is larger than the sum of its proper divisors (1).

380914921 is an equidigital number, since it uses as much as digits as its factorization.

380914921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 380914921 is about 19517.0418096596. The cubic root of 380914921 is about 724.8964868465.

The spelling of 380914921 in words is "three hundred eighty million, nine hundred fourteen thousand, nine hundred twenty-one".