386647 has 2 divisors, whose sum is σ = 386648. Its totient is φ = 386646.

The previous prime is 386641. The next prime is 386651. The reversal of 386647 is 746683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 386647 - 2¹¹ = 384599 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193323 + 193324.

It is an arithmetic number, because the mean of its divisors is an integer number (193324).

2³⁸⁶⁶⁴⁷ is an apocalyptic number.

386647 is a deficient number, since it is larger than the sum of its proper divisors (1).

386647 is an equidigital number, since it uses as much as digits as its factorization.

386647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 386647 is about 621.8094563449. The cubic root of 386647 is about 72.8514524766.

The spelling of 386647 in words is "three hundred eighty-six thousand, six hundred forty-seven".