10808861 has 6 divisors (see below), whose sum is σ = 12573630. Its totient is φ = 9264696.

The previous prime is 10808857. The next prime is 10808887. The reversal of 10808861 is 16880801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10686361 + 122500 = 3269^2 + 350^2 .

It is not a de Polignac number, because 10808861 - 2² = 10808857 is a prime.

It is a super-2 number, since 2×10808861² = 233662952234642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10808761) 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 5 ways as a sum of consecutive naturals, for example, 110246 + ... + 110343.

It is an arithmetic number, because the mean of its divisors is an integer number (2095605).

Almost surely, 2^10808861 is an apocalyptic number.

It is an amenable number.

10808861 is a deficient number, since it is larger than the sum of its proper divisors (1764769).

10808861 is an equidigital number, since it uses as much as digits as its factorization.

10808861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220603 (or 220596 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 10808861 is about 3287.6832268331. The cubic root of 10808861 is about 221.1023256210.

The spelling of 10808861 in words is "ten million, eight hundred eight thousand, eight hundred sixty-one".