16864633 has 2 divisors, whose sum is σ = 16864634. Its totient is φ = 16864632.

The previous prime is 16864621. The next prime is 16864649. The reversal of 16864633 is 33646861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 1087849 = 3972^2 + 1043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16864633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16864592 and 16864601.

It is not a weakly prime, because it can be changed into another prime (16864613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8432316 + 8432317.

It is an arithmetic number, because the mean of its divisors is an integer number (8432317).

Almost surely, 2^16864633 is an apocalyptic number.

It is an amenable number.

16864633 is a deficient number, since it is larger than the sum of its proper divisors (1).

16864633 is an equidigital number, since it uses as much as digits as its factorization.

16864633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 16864633 is about 4106.6571563743. The cubic root of 16864633 is about 256.4438558472.

The spelling of 16864633 in words is "sixteen million, eight hundred sixty-four thousand, six hundred thirty-three".