386561 has 12 divisors (see below), whose sum is σ = 470592. Its totient is φ = 316932.

The previous prime is 386549. The next prime is 386569. The reversal of 386561 is 165683.

It is not a de Polignac number, because 386561 - 2¹⁰ = 385537 is a prime.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (4320) is a multiple of the sum of its prime divisors (30).

It is a plaindrome in base 11.

It is a nialpdrome in base 5 and base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16796 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (39216).

2³⁸⁶⁵⁶¹ is an apocalyptic number.

It is an amenable number.

386561 is a deficient number, since it is larger than the sum of its proper divisors (84031).

386561 is an frugal number, since it uses more digits than its factorization.

386561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58 (or 30 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 386561 is about 621.7402994820. The cubic root of 386561 is about 72.8460507454.

The spelling of 386561 in words is "three hundred eighty-six thousand, five hundred sixty-one".