3055991 has 4 divisors (see below), whose sum is σ = 3161400. Its totient is φ = 2950584.

The previous prime is 3055973. The next prime is 3056041. The reversal of 3055991 is 1995503.

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

It is a cyclic number.

It is not a de Polignac number, because 3055991 - 2¹⁰ = 3054967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3055901) 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, 52661 + ... + 52718.

It is an arithmetic number, because the mean of its divisors is an integer number (790350).

Almost surely, 2^3055991 is an apocalyptic number.

3055991 is a deficient number, since it is larger than the sum of its proper divisors (105409).

3055991 is a wasteful number, since it uses less digits than its factorization.

3055991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105408.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 3055991 is about 1748.1392965093. The cubic root of 3055991 is about 145.1166876805.

The spelling of 3055991 in words is "three million, fifty-five thousand, nine hundred ninety-one".