91936349 has 2 divisors, whose sum is σ = 91936350. Its totient is φ = 91936348.

The previous prime is 91936343. The next prime is 91936363. The reversal of 91936349 is 94363919.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63313849 + 28622500 = 7957^2 + 5350^2 .

It is a cyclic number.

It is not a de Polignac number, because 91936349 - 2¹⁶ = 91870813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91936343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45968174 + 45968175.

It is an arithmetic number, because the mean of its divisors is an integer number (45968175).

Almost surely, 2^91936349 is an apocalyptic number.

It is an amenable number.

91936349 is a deficient number, since it is larger than the sum of its proper divisors (1).

91936349 is an equidigital number, since it uses as much as digits as its factorization.

91936349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 44.

The square root of 91936349 is about 9588.3444347812. The cubic root of 91936349 is about 451.3316096135.

The spelling of 91936349 in words is "ninety-one million, nine hundred thirty-six thousand, three hundred forty-nine".