16861346 has 12 divisors (see below), whose sum is σ = 26441142. Its totient is φ = 8063616.

The previous prime is 16861343. The next prime is 16861357. The reversal of 16861346 is 64316861.

It can be written as a sum of positive squares in only one way, i.e., 13039321 + 3822025 = 3611^2 + 1955^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16861343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6911 + ... + 9026.

Almost surely, 2^16861346 is an apocalyptic number.

16861346 is a deficient number, since it is larger than the sum of its proper divisors (9579796).

16861346 is a wasteful number, since it uses less digits than its factorization.

16861346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15985 (or 15962 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 16861346 is about 4106.2569330231. The cubic root of 16861346 is about 256.4271940413.

The spelling of 16861346 in words is "sixteen million, eight hundred sixty-one thousand, three hundred forty-six".