383864 has 16 divisors (see below), whose sum is σ = 775320. Its totient is φ = 177120.

The previous prime is 383839. The next prime is 383869. The reversal of 383864 is 468383.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 383864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1742 + ... + 1949.

2³⁸³⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

383864 is an abundant number, since it is smaller than the sum of its proper divisors (391456).

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

383864 is a wasteful number, since it uses less digits than its factorization.

383864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3710 (or 3706 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 383864 is about 619.5675911472. The cubic root of 383864 is about 72.6762418528.

The spelling of 383864 in words is "three hundred eighty-three thousand, eight hundred sixty-four".