10564891 has 4 divisors (see below), whose sum is σ = 10582632. Its totient is φ = 10547152.

The previous prime is 10564877. The next prime is 10564901. The reversal of 10564891 is 19846501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19846501 = 41 ⋅484061.

It is a cyclic number.

It is not a de Polignac number, because 10564891 - 2¹¹ = 10562843 is a prime.

It is a super-2 number, since 2×10564891² = 223233843683762, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (10564811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945 + ... + 9178.

It is an arithmetic number, because the mean of its divisors is an integer number (2645658).

Almost surely, 2^10564891 is an apocalyptic number.

10564891 is a deficient number, since it is larger than the sum of its proper divisors (17741).

10564891 is an equidigital number, since it uses as much as digits as its factorization.

10564891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17740.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 10564891 is about 3250.3678253392. The cubic root of 10564891 is about 219.4261283199.

The spelling of 10564891 in words is "ten million, five hundred sixty-four thousand, eight hundred ninety-one".