3256491 has 12 divisors (see below), whose sum is σ = 5051112. Its totient is φ = 1860768.

The previous prime is 3256483. The next prime is 3256499. The reversal of 3256491 is 1946523.

3256491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3256483) and next prime (3256499).

It is not a de Polignac number, because 3256491 - 2³ = 3256483 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3256499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10930 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (420926).

Almost surely, 2^3256491 is an apocalyptic number.

3256491 is a deficient number, since it is larger than the sum of its proper divisors (1794621).

3256491 is a wasteful number, since it uses less digits than its factorization.

3256491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22170 (or 22163 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 3256491 is about 1804.5750192220. The cubic root of 3256491 is about 148.2233509804.

The spelling of 3256491 in words is "three million, two hundred fifty-six thousand, four hundred ninety-one".