386336081 has 2 divisors, whose sum is σ = 386336082. Its totient is φ = 386336080.

The previous prime is 386336059. The next prime is 386336107. The reversal of 386336081 is 180633683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364199056 + 22137025 = 19084^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 386336081 - 2¹⁸ = 386073937 is a prime.

It is a super-2 number, since 2×386336081² = 298511134964877122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (386336011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193168040 + 193168041.

It is an arithmetic number, because the mean of its divisors is an integer number (193168041).

Almost surely, 2^386336081 is an apocalyptic number.

It is an amenable number.

386336081 is a deficient number, since it is larger than the sum of its proper divisors (1).

386336081 is an equidigital number, since it uses as much as digits as its factorization.

386336081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 386336081 is about 19655.4338797189. The cubic root of 386336081 is about 728.3191960815.

The spelling of 386336081 in words is "three hundred eighty-six million, three hundred thirty-six thousand, eighty-one".