386284385 has 4 divisors (see below), whose sum is σ = 463541268. Its totient is φ = 309027504.

The previous prime is 386284373. The next prime is 386284433. The reversal of 386284385 is 583482683.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65480464 + 320803921 = 8092^2 + 17911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386284385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38628434 + ... + 38628443.

It is an arithmetic number, because the mean of its divisors is an integer number (115885317).

Almost surely, 2^386284385 is an apocalyptic number.

It is an amenable number.

386284385 is a deficient number, since it is larger than the sum of its proper divisors (77256883).

386284385 is an equidigital number, since it uses as much as digits as its factorization.

386284385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77256882.

The product of its digits is 1105920, while the sum is 47.

The square root of 386284385 is about 19654.1187795332. The cubic root of 386284385 is about 728.2867089366.

The spelling of 386284385 in words is "three hundred eighty-six million, two hundred eighty-four thousand, three hundred eighty-five".