336581 has 6 divisors (see below), whose sum is σ = 391590. Its totient is φ = 288456.

The previous prime is 336577. The next prime is 336587. The reversal of 336581 is 185633.

It can be written as a sum of positive squares in only one way, i.e., 188356 + 148225 = 434^2 + 385^2 .

It is not a de Polignac number, because 336581 - 2² = 336577 is a prime.

It is a super-2 number, since 2×336581² = 226573539122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 336581.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 336581.

It is not an unprimeable number, because it can be changed into a prime (336587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3386 + ... + 3483.

It is an arithmetic number, because the mean of its divisors is an integer number (65265).

2³³⁶⁵⁸¹ is an apocalyptic number.

It is an amenable number.

336581 is a deficient number, since it is larger than the sum of its proper divisors (55009).

336581 is an equidigital number, since it uses as much as digits as its factorization.

336581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6883 (or 6876 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 336581 is about 580.1560134998. The cubic root of 336581 is about 69.5605806862.

The spelling of 336581 in words is "three hundred thirty-six thousand, five hundred eighty-one".