380975987 has 16 divisors (see below), whose sum is σ = 451377600. Its totient is φ = 314616960.

The previous prime is 380975983. The next prime is 380975993. The reversal of 380975987 is 789579083.

It is not a de Polignac number, because 380975987 - 2² = 380975983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380975983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108089 + ... + 111557.

It is an arithmetic number, because the mean of its divisors is an integer number (28211100).

Almost surely, 2^380975987 is an apocalyptic number.

380975987 is a deficient number, since it is larger than the sum of its proper divisors (70401613).

380975987 is a wasteful number, since it uses less digits than its factorization.

380975987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 380975987 is about 19518.6061746222. The cubic root of 380975987 is about 724.9352217985.

The spelling of 380975987 in words is "three hundred eighty million, nine hundred seventy-five thousand, nine hundred eighty-seven".