91333841 has 2 divisors, whose sum is σ = 91333842. Its totient is φ = 91333840.

The previous prime is 91333819. The next prime is 91333861. The reversal of 91333841 is 14833319.

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., 85951441 + 5382400 = 9271^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 91333841 - 2⁶ = 91333777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91333798 and 91333807.

It is not a weakly prime, because it can be changed into another prime (91333811) 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, 45666920 + 45666921.

It is an arithmetic number, because the mean of its divisors is an integer number (45666921).

Almost surely, 2^91333841 is an apocalyptic number.

It is an amenable number.

91333841 is a deficient number, since it is larger than the sum of its proper divisors (1).

91333841 is an equidigital number, since it uses as much as digits as its factorization.

91333841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 91333841 is about 9556.8740182133. The cubic root of 91333841 is about 450.3435089081.

The spelling of 91333841 in words is "ninety-one million, three hundred thirty-three thousand, eight hundred forty-one".