386704085 has 4 divisors (see below), whose sum is σ = 464044908. Its totient is φ = 309363264.

The previous prime is 386704081. The next prime is 386704091. The reversal of 386704085 is 580407683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580407683 = 131 ⋅4430593.

It can be written as a sum of positive squares in 2 ways, for example, as 108014449 + 278689636 = 10393^2 + 16694^2 .

It is a cyclic number.

It is not a de Polignac number, because 386704085 - 2² = 386704081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386704081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38670404 + ... + 38670413.

It is an arithmetic number, because the mean of its divisors is an integer number (116011227).

Almost surely, 2^386704085 is an apocalyptic number.

It is an amenable number.

386704085 is a deficient number, since it is larger than the sum of its proper divisors (77340823).

386704085 is an equidigital number, since it uses as much as digits as its factorization.

386704085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77340822.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 386704085 is about 19664.7930322188. The cubic root of 386704085 is about 728.5503759044.

The spelling of 386704085 in words is "three hundred eighty-six million, seven hundred four thousand, eighty-five".