94823821 has 2 divisors, whose sum is σ = 94823822. Its totient is φ = 94823820.

The previous prime is 94823819. The next prime is 94823843. The reversal of 94823821 is 12832849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51408900 + 43414921 = 7170^2 + 6589^2 .

It is an emirp because it is prime and its reverse (12832849) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94823821 - 2¹ = 94823819 is a prime.

Together with 94823819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94823801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47411910 + 47411911.

It is an arithmetic number, because the mean of its divisors is an integer number (47411911).

Almost surely, 2^94823821 is an apocalyptic number.

It is an amenable number.

94823821 is a deficient number, since it is larger than the sum of its proper divisors (1).

94823821 is an equidigital number, since it uses as much as digits as its factorization.

94823821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 94823821 is about 9737.7523587325. The cubic root of 94823821 is about 456.0080231609.

The spelling of 94823821 in words is "ninety-four million, eight hundred twenty-three thousand, eight hundred twenty-one".