380906117 has 2 divisors, whose sum is σ = 380906118. Its totient is φ = 380906116.

The previous prime is 380906089. The next prime is 380906137. The reversal of 380906117 is 711609083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323964001 + 56942116 = 17999^2 + 7546^2 .

It is a cyclic number.

It is not a de Polignac number, because 380906117 - 2¹² = 380902021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380906137) 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, 190453058 + 190453059.

It is an arithmetic number, because the mean of its divisors is an integer number (190453059).

Almost surely, 2^380906117 is an apocalyptic number.

It is an amenable number.

380906117 is a deficient number, since it is larger than the sum of its proper divisors (1).

380906117 is an equidigital number, since it uses as much as digits as its factorization.

380906117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 380906117 is about 19516.8162618804. The cubic root of 380906117 is about 724.8909020142.

The spelling of 380906117 in words is "three hundred eighty million, nine hundred six thousand, one hundred seventeen".