91842349 has 2 divisors, whose sum is σ = 91842350. Its totient is φ = 91842348.

The previous prime is 91842341. The next prime is 91842383. The reversal of 91842349 is 94324819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 25826724 = 8125^2 + 5082^2 .

It is an emirp because it is prime and its reverse (94324819) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91842349 - 2³ = 91842341 is a 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 (91842341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45921174 + 45921175.

It is an arithmetic number, because the mean of its divisors is an integer number (45921175).

Almost surely, 2^91842349 is an apocalyptic number.

It is an amenable number.

91842349 is a deficient number, since it is larger than the sum of its proper divisors (1).

91842349 is an equidigital number, since it uses as much as digits as its factorization.

91842349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 91842349 is about 9583.4413964922. The cubic root of 91842349 is about 451.1777363481.

The spelling of 91842349 in words is "ninety-one million, eight hundred forty-two thousand, three hundred forty-nine".