3256393 has 6 divisors (see below), whose sum is σ = 3788106. Its totient is φ = 2791152.

The previous prime is 3256369. The next prime is 3256397. The reversal of 3256393 is 3936523.

It can be written as a sum of positive squares in only one way, i.e., 2350089 + 906304 = 1533^2 + 952^2 .

It is not a de Polignac number, because 3256393 - 2⁵ = 3256361 is a prime.

3256393 is a lucky number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (3256397) 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, 33180 + ... + 33277.

It is an arithmetic number, because the mean of its divisors is an integer number (631351).

Almost surely, 2^3256393 is an apocalyptic number.

It is an amenable number.

3256393 is a deficient number, since it is larger than the sum of its proper divisors (531713).

3256393 is an equidigital number, since it uses as much as digits as its factorization.

3256393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66471 (or 66464 counting only the distinct ones).

The product of its digits is 14580, while the sum is 31.

The square root of 3256393 is about 1804.5478658102. The cubic root of 3256393 is about 148.2218641004.

The spelling of 3256393 in words is "three million, two hundred fifty-six thousand, three hundred ninety-three".