10861849 has 4 divisors (see below), whose sum is σ = 10875060. Its totient is φ = 10848640.

The previous prime is 10861817. The next prime is 10861859. The reversal of 10861849 is 94816801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 10272025 = 768^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 10861849 - 2⁵ = 10861817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10861859) 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 3 ways as a sum of consecutive naturals, for example, 5284 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (2718765).

Almost surely, 2^10861849 is an apocalyptic number.

10861849 is the 1762-nd nonagonal number.

It is an amenable number.

10861849 is a deficient number, since it is larger than the sum of its proper divisors (13211).

10861849 is an equidigital number, since it uses as much as digits as its factorization.

10861849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13210.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 10861849 is about 3295.7319369148. The cubic root of 10861849 is about 221.4630382302.

The spelling of 10861849 in words is "ten million, eight hundred sixty-one thousand, eight hundred forty-nine".