3266581 has 4 divisors (see below), whose sum is σ = 3342592. Its totient is φ = 3190572.

The previous prime is 3266579. The next prime is 3266587. The reversal of 3266581 is 1856623.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3266581 - 2¹ = 3266579 is a prime.

It is a super-2 number, since 2×3266581² = 21341102859122, which contains 22 as substring.

It is a Duffinian number.

3266581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3266587) 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, 37941 + ... + 38026.

It is an arithmetic number, because the mean of its divisors is an integer number (835648).

Almost surely, 2^3266581 is an apocalyptic number.

It is an amenable number.

3266581 is a deficient number, since it is larger than the sum of its proper divisors (76011).

3266581 is an equidigital number, since it uses as much as digits as its factorization.

3266581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76010.

The product of its digits is 8640, while the sum is 31.

The square root of 3266581 is about 1807.3685291052. The cubic root of 3266581 is about 148.3762795593.

The spelling of 3266581 in words is "three million, two hundred sixty-six thousand, five hundred eighty-one".