94016821 has 2 divisors, whose sum is σ = 94016822. Its totient is φ = 94016820.

The previous prime is 94016809. The next prime is 94016827. The reversal of 94016821 is 12861049.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 8916196 = 9225^2 + 2986^2 .

It is an emirp because it is prime and its reverse (12861049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94016821 - 2⁵ = 94016789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94016827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47008410 + 47008411.

It is an arithmetic number, because the mean of its divisors is an integer number (47008411).

Almost surely, 2^94016821 is an apocalyptic number.

It is an amenable number.

94016821 is a deficient number, since it is larger than the sum of its proper divisors (1).

94016821 is an equidigital number, since it uses as much as digits as its factorization.

94016821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 94016821 is about 9696.2271528672. The cubic root of 94016821 is about 454.7107141527.

The spelling of 94016821 in words is "ninety-four million, sixteen thousand, eight hundred twenty-one".