387880550 has 12 divisors (see below), whose sum is σ = 721457916. Its totient is φ = 155152200.

The previous prime is 387880547. The next prime is 387880627. The reversal of 387880550 is 55088783.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3878756 + ... + 3878855.

It is an arithmetic number, because the mean of its divisors is an integer number (60121493).

Almost surely, 2^387880550 is an apocalyptic number.

387880550 is a deficient number, since it is larger than the sum of its proper divisors (333577366).

387880550 is a wasteful number, since it uses less digits than its factorization.

387880550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757623 (or 7757618 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 387880550 is about 19694.6832927062. The cubic root of 387880550 is about 729.2884478320.

The spelling of 387880550 in words is "three hundred eighty-seven million, eight hundred eighty thousand, five hundred fifty".