10819885 has 8 divisors (see below), whose sum is σ = 13103640. Its totient is φ = 8576064.

The previous prime is 10819883. The next prime is 10819889. The reversal of 10819885 is 58891801.

It can be written as a sum of positive squares in 4 ways, for example, as 599076 + 10220809 = 774^2 + 3197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10819885 - 2¹ = 10819883 is a prime.

It is a super-2 number, since 2×10819885² = 234139822826450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10819883) 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 7 ways as a sum of consecutive naturals, for example, 9382 + ... + 10471.

It is an arithmetic number, because the mean of its divisors is an integer number (1637955).

Almost surely, 2^10819885 is an apocalyptic number.

It is an amenable number.

10819885 is a deficient number, since it is larger than the sum of its proper divisors (2283755).

10819885 is a wasteful number, since it uses less digits than its factorization.

10819885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19967.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 10819885 is about 3289.3593601186. The cubic root of 10819885 is about 221.1774677924.

The spelling of 10819885 in words is "ten million, eight hundred nineteen thousand, eight hundred eighty-five".