10689885 has 48 divisors (see below), whose sum is σ = 19568640. Its totient is φ = 5391360.

The previous prime is 10689883. The next prime is 10689907. The reversal of 10689885 is 58898601.

It is not a de Polignac number, because 10689885 - 2¹ = 10689883 is a prime.

It is a super-2 number, since 2×10689885² = 228547282626450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 10689885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10689881) 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 47 ways as a sum of consecutive naturals, for example, 110157 + ... + 110253.

It is an arithmetic number, because the mean of its divisors is an integer number (407680).

Almost surely, 2^10689885 is an apocalyptic number.

10689885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10689885 is a deficient number, since it is larger than the sum of its proper divisors (8878755).

10689885 is a wasteful number, since it uses less digits than its factorization.

10689885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 10689885 is about 3269.5389583242. The cubic root of 10689885 is about 220.2880867772.

The spelling of 10689885 in words is "ten million, six hundred eighty-nine thousand, eight hundred eighty-five".