16862081 has 2 divisors, whose sum is σ = 16862082. Its totient is φ = 16862080.

The previous prime is 16862077. The next prime is 16862093. The reversal of 16862081 is 18026861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14250625 + 2611456 = 3775^2 + 1616^2 .

It is a cyclic number.

It is not a de Polignac number, because 16862081 - 2² = 16862077 is a prime.

It is a super-2 number, since 2×16862081² = 568659551301122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16862281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8431040 + 8431041.

It is an arithmetic number, because the mean of its divisors is an integer number (8431041).

Almost surely, 2^16862081 is an apocalyptic number.

It is an amenable number.

16862081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16862081 is an equidigital number, since it uses as much as digits as its factorization.

16862081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 16862081 is about 4106.3464296136. The cubic root of 16862081 is about 256.4309199449.

The spelling of 16862081 in words is "sixteen million, eight hundred sixty-two thousand, eighty-one".