380555887 has 2 divisors, whose sum is σ = 380555888. Its totient is φ = 380555886.

The previous prime is 380555873. The next prime is 380555963. The reversal of 380555887 is 788555083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380555887 - 2¹¹ = 380553839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380555887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380555827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190277943 + 190277944.

It is an arithmetic number, because the mean of its divisors is an integer number (190277944).

Almost surely, 2^380555887 is an apocalyptic number.

380555887 is a deficient number, since it is larger than the sum of its proper divisors (1).

380555887 is an equidigital number, since it uses as much as digits as its factorization.

380555887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 49.

The square root of 380555887 is about 19507.8416796938. The cubic root of 380555887 is about 724.6686631826.

The spelling of 380555887 in words is "three hundred eighty million, five hundred fifty-five thousand, eight hundred eighty-seven".