91304753 has 2 divisors, whose sum is σ = 91304754. Its totient is φ = 91304752.

The previous prime is 91304737. The next prime is 91304761. The reversal of 91304753 is 35740319.

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., 91259809 + 44944 = 9553^2 + 212^2 .

It is a cyclic number.

It is not a de Polignac number, because 91304753 - 2⁴ = 91304737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91304723) 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, 45652376 + 45652377.

It is an arithmetic number, because the mean of its divisors is an integer number (45652377).

Almost surely, 2^91304753 is an apocalyptic number.

It is an amenable number.

91304753 is a deficient number, since it is larger than the sum of its proper divisors (1).

91304753 is an equidigital number, since it uses as much as digits as its factorization.

91304753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 91304753 is about 9555.3520604947. The cubic root of 91304753 is about 450.2956953677.

The spelling of 91304753 in words is "ninety-one million, three hundred four thousand, seven hundred fifty-three".