387671287 has 8 divisors (see below), whose sum is σ = 394359680. Its totient is φ = 380993760.

The previous prime is 387671261. The next prime is 387671293. The reversal of 387671287 is 782176783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387671287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387671287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387671227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105493 + ... + 109105.

It is an arithmetic number, because the mean of its divisors is an integer number (49294960).

Almost surely, 2^387671287 is an apocalyptic number.

387671287 is a deficient number, since it is larger than the sum of its proper divisors (6688393).

387671287 is a wasteful number, since it uses less digits than its factorization.

387671287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433.

The product of its digits is 790272, while the sum is 49.

The square root of 387671287 is about 19689.3698985011. The cubic root of 387671287 is about 729.1572729623.

The spelling of 387671287 in words is "three hundred eighty-seven million, six hundred seventy-one thousand, two hundred eighty-seven".