386304805 has 4 divisors (see below), whose sum is σ = 463565772. Its totient is φ = 309043840.

The previous prime is 386304799. The next prime is 386304811. The reversal of 386304805 is 508403683.

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

It is an interprime number because it is at equal distance from previous prime (386304799) and next prime (386304811).

It can be written as a sum of positive squares in 2 ways, for example, as 105206049 + 281098756 = 10257^2 + 16766^2 .

It is not a de Polignac number, because 386304805 - 2⁵ = 386304773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 38630476 + ... + 38630485.

It is an arithmetic number, because the mean of its divisors is an integer number (115891443).

Almost surely, 2^386304805 is an apocalyptic number.

It is an amenable number.

386304805 is a deficient number, since it is larger than the sum of its proper divisors (77260967).

386304805 is an equidigital number, since it uses as much as digits as its factorization.

386304805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77260966.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 386304805 is about 19654.6382566559. The cubic root of 386304805 is about 728.2995417554.

The spelling of 386304805 in words is "three hundred eighty-six million, three hundred four thousand, eight hundred five".