10028889 has 12 divisors (see below), whose sum is σ = 15600676. Its totient is φ = 6171552.

The previous prime is 10028881. The next prime is 10028891. The reversal of 10028889 is 98882001.

It can be written as a sum of positive squares in 2 ways, for example, as 1734489 + 8294400 = 1317^2 + 2880^2 .

It is not a de Polignac number, because 10028889 - 2³ = 10028881 is a prime.

It is a super-2 number, since 2×10028889² = 201157229148642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10028881) 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 11 ways as a sum of consecutive naturals, for example, 42742 + ... + 42975.

Almost surely, 2^10028889 is an apocalyptic number.

It is an amenable number.

10028889 is a deficient number, since it is larger than the sum of its proper divisors (5571787).

10028889 is a wasteful number, since it uses less digits than its factorization.

10028889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85736 (or 85733 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 10028889 is about 3166.8421179465. The cubic root of 10028889 is about 215.6507344206.

The spelling of 10028889 in words is "ten million, twenty-eight thousand, eight hundred eighty-nine".