94199993 has 2 divisors, whose sum is σ = 94199994. Its totient is φ = 94199992.

The previous prime is 94199981. The next prime is 94200011. The reversal of 94199993 is 39999149.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76247824 + 17952169 = 8732^2 + 4237^2 .

It is a cyclic number.

It is not a de Polignac number, because 94199993 - 2⁴ = 94199977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (94199953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47099996 + 47099997.

It is an arithmetic number, because the mean of its divisors is an integer number (47099997).

Almost surely, 2^94199993 is an apocalyptic number.

It is an amenable number.

94199993 is a deficient number, since it is larger than the sum of its proper divisors (1).

94199993 is an equidigital number, since it uses as much as digits as its factorization.

94199993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 708588, while the sum is 53.

The square root of 94199993 is about 9705.6680862267. The cubic root of 94199993 is about 455.0058253088.

The spelling of 94199993 in words is "ninety-four million, one hundred ninety-nine thousand, nine hundred ninety-three".