91298833 has 2 divisors, whose sum is σ = 91298834. Its totient is φ = 91298832.

The previous prime is 91298827. The next prime is 91298839. The reversal of 91298833 is 33889219.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (91298827) and next prime (91298839).

It can be written as a sum of positive squares in only one way, i.e., 89718784 + 1580049 = 9472^2 + 1257^2 .

It is a cyclic number.

It is not a de Polignac number, because 91298833 - 2⁹ = 91298321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91298833.

It is not a weakly prime, because it can be changed into another prime (91298839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45649416 + 45649417.

It is an arithmetic number, because the mean of its divisors is an integer number (45649417).

Almost surely, 2^91298833 is an apocalyptic number.

It is an amenable number.

91298833 is a deficient number, since it is larger than the sum of its proper divisors (1).

91298833 is an equidigital number, since it uses as much as digits as its factorization.

91298833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 91298833 is about 9555.0422814344. The cubic root of 91298833 is about 450.2859630955.

The spelling of 91298833 in words is "ninety-one million, two hundred ninety-eight thousand, eight hundred thirty-three".