16822861 has 8 divisors (see below), whose sum is σ = 18525024. Its totient is φ = 15149520.

The previous prime is 16822849. The next prime is 16822909.

16822861 is nontrivially palindromic in base 10.

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 16822861 - 2¹¹ = 16820813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16822831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5970 + ... + 8323.

It is an arithmetic number, because the mean of its divisors is an integer number (2315628).

Almost surely, 2^16822861 is an apocalyptic number.

16822861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16822861 is a deficient number, since it is larger than the sum of its proper divisors (1702163).

16822861 is a wasteful number, since it uses less digits than its factorization.

16822861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14411.

The product of its digits is 9216, while the sum is 34.

The square root of 16822861 is about 4101.5681147581. The cubic root of 16822861 is about 256.2319522487.

The spelling of 16822861 in words is "sixteen million, eight hundred twenty-two thousand, eight hundred sixty-one".