386305287 has 16 divisors (see below), whose sum is σ = 525813120. Its totient is φ = 252186272.

The previous prime is 386305277. The next prime is 386305289. The reversal of 386305287 is 782503683.

It is a cyclic number.

It is not a de Polignac number, because 386305287 - 2⁷ = 386305159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386305289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91264 + ... + 95402.

It is an arithmetic number, because the mean of its divisors is an integer number (32863320).

Almost surely, 2^386305287 is an apocalyptic number.

386305287 is a deficient number, since it is larger than the sum of its proper divisors (139507833).

386305287 is a wasteful number, since it uses less digits than its factorization.

386305287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 386305287 is about 19654.6505183888. The cubic root of 386305287 is about 728.2998446598.

The spelling of 386305287 in words is "three hundred eighty-six million, three hundred five thousand, two hundred eighty-seven".