16828261 has 2 divisors, whose sum is σ = 16828262. Its totient is φ = 16828260.

The previous prime is 16828237. The next prime is 16828267. The reversal of 16828261 is 16282861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12852225 + 3976036 = 3585^2 + 1994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16828261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16828267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8414130 + 8414131.

It is an arithmetic number, because the mean of its divisors is an integer number (8414131).

Almost surely, 2^16828261 is an apocalyptic number.

It is an amenable number.

16828261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16828261 is an equidigital number, since it uses as much as digits as its factorization.

16828261 is an evil number, because the sum of its binary digits is even.

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

The square root of 16828261 is about 4102.2263467537. The cubic root of 16828261 is about 256.2593654320.

The spelling of 16828261 in words is "sixteen million, eight hundred twenty-eight thousand, two hundred sixty-one".