380409671 has 2 divisors, whose sum is σ = 380409672. Its totient is φ = 380409670.

The previous prime is 380409647. The next prime is 380409703. The reversal of 380409671 is 176904083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380409671 - 2⁶ = 380409607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380409571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190204835 + 190204836.

It is an arithmetic number, because the mean of its divisors is an integer number (190204836).

Almost surely, 2^380409671 is an apocalyptic number.

380409671 is a deficient number, since it is larger than the sum of its proper divisors (1).

380409671 is an equidigital number, since it uses as much as digits as its factorization.

380409671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 380409671 is about 19504.0936985034. The cubic root of 380409671 is about 724.5758413132.

The spelling of 380409671 in words is "three hundred eighty million, four hundred nine thousand, six hundred seventy-one".