387865959 has 16 divisors (see below), whose sum is σ = 557837952. Its totient is φ = 238300128.

The previous prime is 387865937. The next prime is 387865987. The reversal of 387865959 is 959568783.

It is not a de Polignac number, because 387865959 - 2¹⁶ = 387800423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387865559) 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, 17344 + ... + 32810.

It is an arithmetic number, because the mean of its divisors is an integer number (34864872).

Almost surely, 2^387865959 is an apocalyptic number.

387865959 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

387865959 is a deficient number, since it is larger than the sum of its proper divisors (169971993).

387865959 is a wasteful number, since it uses less digits than its factorization.

387865959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126.

The product of its digits is 16329600, while the sum is 60.

The square root of 387865959 is about 19694.3128593003. The cubic root of 387865959 is about 729.2793031085.

The spelling of 387865959 in words is "three hundred eighty-seven million, eight hundred sixty-five thousand, nine hundred fifty-nine".