386099081 has 4 divisors (see below), whose sum is σ = 388690500. Its totient is φ = 383507664.

The previous prime is 386099041. The next prime is 386099083. The reversal of 386099081 is 180990683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180990683 = 1039 ⋅174197.

It can be written as a sum of positive squares in 2 ways, for example, as 50623225 + 335475856 = 7115^2 + 18316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-386099081 is a prime.

It is a super-2 number, since 2×386099081² = 298145000698089122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (386099083) 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, 1295486 + ... + 1295783.

It is an arithmetic number, because the mean of its divisors is an integer number (97172625).

Almost surely, 2^386099081 is an apocalyptic number.

It is an amenable number.

386099081 is a deficient number, since it is larger than the sum of its proper divisors (2591419).

386099081 is a wasteful number, since it uses less digits than its factorization.

386099081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591418.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 386099081 is about 19649.4040876562. The cubic root of 386099081 is about 728.1702351409.

The spelling of 386099081 in words is "three hundred eighty-six million, ninety-nine thousand, eighty-one".