4568991 has 16 divisors (see below), whose sum is σ = 7037184. Its totient is φ = 2582784.

The previous prime is 4568989. The next prime is 4569001. The reversal of 4568991 is 1998654.

It is not a de Polignac number, because 4568991 - 2¹ = 4568989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4568951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (439824).

Almost surely, 2^4568991 is an apocalyptic number.

4568991 is a deficient number, since it is larger than the sum of its proper divisors (2468193).

4568991 is a wasteful number, since it uses less digits than its factorization.

4568991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350.

The product of its digits is 77760, while the sum is 42.

The square root of 4568991 is about 2137.5198244695. The cubic root of 4568991 is about 165.9358028242.

The spelling of 4568991 in words is "four million, five hundred sixty-eight thousand, nine hundred ninety-one".