94073821 has 2 divisors, whose sum is σ = 94073822. Its totient is φ = 94073820.

The previous prime is 94073813. The next prime is 94073827. The reversal of 94073821 is 12837049.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70744921 + 23328900 = 8411^2 + 4830^2 .

It is a cyclic number.

It is not a de Polignac number, because 94073821 - 2³ = 94073813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94073827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47036910 + 47036911.

It is an arithmetic number, because the mean of its divisors is an integer number (47036911).

Almost surely, 2^94073821 is an apocalyptic number.

It is an amenable number.

94073821 is a deficient number, since it is larger than the sum of its proper divisors (1).

94073821 is an equidigital number, since it uses as much as digits as its factorization.

94073821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 94073821 is about 9699.1659950740. The cubic root of 94073821 is about 454.8025887566.

The spelling of 94073821 in words is "ninety-four million, seventy-three thousand, eight hundred twenty-one".