94493809 has 2 divisors, whose sum is σ = 94493810. Its totient is φ = 94493808.

The previous prime is 94493801. The next prime is 94493813. The reversal of 94493809 is 90839449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62853184 + 31640625 = 7928^2 + 5625^2 .

It is a cyclic number.

It is not a de Polignac number, because 94493809 - 2³ = 94493801 is a prime.

It is not a weakly prime, because it can be changed into another prime (94493801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47246904 + 47246905.

It is an arithmetic number, because the mean of its divisors is an integer number (47246905).

Almost surely, 2^94493809 is an apocalyptic number.

It is an amenable number.

94493809 is a deficient number, since it is larger than the sum of its proper divisors (1).

94493809 is an equidigital number, since it uses as much as digits as its factorization.

94493809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 94493809 is about 9720.7926117164. The cubic root of 94493809 is about 455.4783987269.

The spelling of 94493809 in words is "ninety-four million, four hundred ninety-three thousand, eight hundred nine".