380907869 has 2 divisors, whose sum is σ = 380907870. Its totient is φ = 380907868.

The previous prime is 380907847. The next prime is 380907937. The reversal of 380907869 is 968709083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341695225 + 39212644 = 18485^2 + 6262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380907869 is a prime.

It is a super-2 number, since 2×380907869² = 290181609332242322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380907809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190453934 + 190453935.

It is an arithmetic number, because the mean of its divisors is an integer number (190453935).

Almost surely, 2^380907869 is an apocalyptic number.

It is an amenable number.

380907869 is a deficient number, since it is larger than the sum of its proper divisors (1).

380907869 is an equidigital number, since it uses as much as digits as its factorization.

380907869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 380907869 is about 19516.8611461987. The cubic root of 380907869 is about 724.8920134052.

The spelling of 380907869 in words is "three hundred eighty million, nine hundred seven thousand, eight hundred sixty-nine".