387888534 has 64 divisors (see below), whose sum is σ = 989856000. Its totient is φ = 111352320.

The previous prime is 387888517. The next prime is 387888551. The reversal of 387888534 is 435888783.

387888534 is a `hidden beast` number, since 38 + 78 + 8 + 8 + 534 = 666.

It is an interprime number because it is at equal distance from previous prime (387888517) and next prime (387888551).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5899 + ... + 28470.

It is an arithmetic number, because the mean of its divisors is an integer number (15466500).

Almost surely, 2^387888534 is an apocalyptic number.

387888534 is an abundant number, since it is smaller than the sum of its proper divisors (601967466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387888534 is a wasteful number, since it uses less digits than its factorization.

387888534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34410 (or 34404 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The square root of 387888534 is about 19694.8859859609. The cubic root of 387888534 is about 729.2934516053.

The spelling of 387888534 in words is "three hundred eighty-seven million, eight hundred eighty-eight thousand, five hundred thirty-four".