386745 has 32 divisors (see below), whose sum is σ = 691200. Its totient is φ = 183744.

The previous prime is 386731. The next prime is 386747. The reversal of 386745 is 547683.

It is not a de Polignac number, because 386745 - 2⁵ = 386713 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386745.

It is not an unprimeable number, because it can be changed into a prime (386747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6526 + ... + 6584.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

2³⁸⁶⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

386745 is a deficient number, since it is larger than the sum of its proper divisors (304455).

386745 is a wasteful number, since it uses less digits than its factorization.

386745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109.

The product of its digits is 20160, while the sum is 33.

The square root of 386745 is about 621.8882536276. Note that the first 3 decimals coincide. The cubic root of 386745 is about 72.8576069614.

The spelling of 386745 in words is "three hundred eighty-six thousand, seven hundred forty-five".