94946821 has 2 divisors, whose sum is σ = 94946822. Its totient is φ = 94946820.

The previous prime is 94946779. The next prime is 94946827. The reversal of 94946821 is 12864949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75498721 + 19448100 = 8689^2 + 4410^2 .

It is an emirp because it is prime and its reverse (12864949) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94946821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94946827) 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, 47473410 + 47473411.

It is an arithmetic number, because the mean of its divisors is an integer number (47473411).

Almost surely, 2^94946821 is an apocalyptic number.

It is an amenable number.

94946821 is a deficient number, since it is larger than the sum of its proper divisors (1).

94946821 is an equidigital number, since it uses as much as digits as its factorization.

94946821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 94946821 is about 9744.0659377900. The cubic root of 94946821 is about 456.2051070860.

The spelling of 94946821 in words is "ninety-four million, nine hundred forty-six thousand, eight hundred twenty-one".