10289881 has 4 divisors (see below), whose sum is σ = 11759872. Its totient is φ = 8819892.

The previous prime is 10289863. The next prime is 10289891. The reversal of 10289881 is 18898201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18898201 = 7 ⋅2699743.

It is a cyclic number.

It is not a de Polignac number, because 10289881 - 2¹⁵ = 10257113 is a prime.

It is a super-2 number, since 2×10289881² = 211763301988322, which contains 22 as substring.

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 10289881.

It is not an unprimeable number, because it can be changed into a prime (10289801) 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, 734985 + ... + 734998.

It is an arithmetic number, because the mean of its divisors is an integer number (2939968).

Almost surely, 2^10289881 is an apocalyptic number.

It is an amenable number.

10289881 is a deficient number, since it is larger than the sum of its proper divisors (1469991).

10289881 is an equidigital number, since it uses as much as digits as its factorization.

10289881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469990.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 10289881 is about 3207.7844378948. The cubic root of 10289881 is about 217.5054369540.

It can be divided in two parts, 10289 and 881, that multiplied together give a palindrome (9064609).

The spelling of 10289881 in words is "ten million, two hundred eighty-nine thousand, eight hundred eighty-one".