380667887 has 2 divisors, whose sum is σ = 380667888. Its totient is φ = 380667886.

The previous prime is 380667883. The next prime is 380667901. The reversal of 380667887 is 788766083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380667887 - 2² = 380667883 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380667883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190333943 + 190333944.

It is an arithmetic number, because the mean of its divisors is an integer number (190333944).

Almost surely, 2^380667887 is an apocalyptic number.

380667887 is a deficient number, since it is larger than the sum of its proper divisors (1).

380667887 is an equidigital number, since it uses as much as digits as its factorization.

380667887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 380667887 is about 19510.7121089928. The cubic root of 380667887 is about 724.7397477303.

The spelling of 380667887 in words is "three hundred eighty million, six hundred sixty-seven thousand, eight hundred eighty-seven".