3256091 has 4 divisors (see below), whose sum is σ = 3368400. Its totient is φ = 3143784.

The previous prime is 3256081. The next prime is 3256093. The reversal of 3256091 is 1906523.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3256091 is a prime.

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 3256091.

It is not an unprimeable number, because it can be changed into a prime (3256093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56111 + ... + 56168.

It is an arithmetic number, because the mean of its divisors is an integer number (842100).

Almost surely, 2^3256091 is an apocalyptic number.

3256091 is a deficient number, since it is larger than the sum of its proper divisors (112309).

3256091 is a wasteful number, since it uses less digits than its factorization.

3256091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112308.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 3256091 is about 1804.4641863999. The cubic root of 3256091 is about 148.2172818948.

The spelling of 3256091 in words is "three million, two hundred fifty-six thousand, ninety-one".