387387 has 48 divisors (see below), whose sum is σ = 768768. Its totient is φ = 181440.

The previous prime is 387371. The next prime is 387397. The reversal of 387387 is 783783.

It is not a de Polignac number, because 387387 - 2⁴ = 387371 is a prime.

It is an Ulam number.

387387 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8988 + ... + 9030.

It is an arithmetic number, because the mean of its divisors is an integer number (16016).

2³⁸⁷³⁸⁷ is an apocalyptic number.

387387 is a deficient number, since it is larger than the sum of its proper divisors (381381).

387387 is a wasteful number, since it uses less digits than its factorization.

387387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 77 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 387387 is about 622.4042094973. The cubic root of 387387 is about 72.8978994241.

The spelling of 387387 in words is "three hundred eighty-seven thousand, three hundred eighty-seven".