386805081 has 16 divisors (see below), whose sum is σ = 568331456. Its totient is φ = 232497216.

The previous prime is 386805037. The next prime is 386805101. The reversal of 386805081 is 180508683.

It is a happy number.

It is not a de Polignac number, because 386805081 - 2⁹ = 386804569 is a prime.

It is a super-2 number, since 2×386805081² = 299236341374833122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386805281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113650 + ... + 117003.

It is an arithmetic number, because the mean of its divisors is an integer number (35520716).

Almost surely, 2^386805081 is an apocalyptic number.

It is an amenable number.

386805081 is a deficient number, since it is larger than the sum of its proper divisors (181526375).

386805081 is a wasteful number, since it uses less digits than its factorization.

386805081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230712.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 386805081 is about 19667.3608041343. The cubic root of 386805081 is about 728.6137958611.

The spelling of 386805081 in words is "three hundred eighty-six million, eight hundred five thousand, eighty-one".