91694849 has 2 divisors, whose sum is σ = 91694850. Its totient is φ = 91694848.

The previous prime is 91694809. The next prime is 91694851. The reversal of 91694849 is 94849619.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91546624 + 148225 = 9568^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 91694849 - 2¹⁶ = 91629313 is a prime.

Together with 91694851, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 91694797 and 91694806.

It is not a weakly prime, because it can be changed into another prime (91694809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45847424 + 45847425.

It is an arithmetic number, because the mean of its divisors is an integer number (45847425).

Almost surely, 2^91694849 is an apocalyptic number.

It is an amenable number.

91694849 is a deficient number, since it is larger than the sum of its proper divisors (1).

91694849 is an equidigital number, since it uses as much as digits as its factorization.

91694849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The square root of 91694849 is about 9575.7427388167. The cubic root of 91694849 is about 450.9360745052.

The spelling of 91694849 in words is "ninety-one million, six hundred ninety-four thousand, eight hundred forty-nine".