94218791 has 2 divisors, whose sum is σ = 94218792. Its totient is φ = 94218790.

The previous prime is 94218757. The next prime is 94218799. The reversal of 94218791 is 19781249.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94218791 - 2¹⁸ = 93956647 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94218799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47109395 + 47109396.

It is an arithmetic number, because the mean of its divisors is an integer number (47109396).

Almost surely, 2^94218791 is an apocalyptic number.

94218791 is a deficient number, since it is larger than the sum of its proper divisors (1).

94218791 is an equidigital number, since it uses as much as digits as its factorization.

94218791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 94218791 is about 9706.6364411159. The cubic root of 94218791 is about 455.0360893968.

The spelling of 94218791 in words is "ninety-four million, two hundred eighteen thousand, seven hundred ninety-one".