3556091 has 8 divisors (see below), whose sum is σ = 4433664. Its totient is φ = 2770920.

The previous prime is 3556087. The next prime is 3556093. The reversal of 3556091 is 1906553.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3556091 - 2² = 3556087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3556093) 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 7 ways as a sum of consecutive naturals, for example, 23015 + ... + 23168.

It is an arithmetic number, because the mean of its divisors is an integer number (554208).

Almost surely, 2^3556091 is an apocalyptic number.

3556091 is a deficient number, since it is larger than the sum of its proper divisors (877573).

3556091 is a wasteful number, since it uses less digits than its factorization.

3556091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46201.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 3556091 is about 1885.7600589683. The cubic root of 3556091 is about 152.6362269252.

It can be divided in two parts, 355 and 6091, that added together give a palindrome (6446).

The spelling of 3556091 in words is "three million, five hundred fifty-six thousand, ninety-one".