91053773 has 2 divisors, whose sum is σ = 91053774. Its totient is φ = 91053772.

The previous prime is 91053731. The next prime is 91053779. The reversal of 91053773 is 37735019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72965764 + 18088009 = 8542^2 + 4253^2 .

It is a cyclic number.

It is not a de Polignac number, because 91053773 - 2⁶ = 91053709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91053779) 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, 45526886 + 45526887.

It is an arithmetic number, because the mean of its divisors is an integer number (45526887).

Almost surely, 2^91053773 is an apocalyptic number.

It is an amenable number.

91053773 is a deficient number, since it is larger than the sum of its proper divisors (1).

91053773 is an equidigital number, since it uses as much as digits as its factorization.

91053773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 91053773 is about 9542.2100689515. The cubic root of 91053773 is about 449.8827233481.

The spelling of 91053773 in words is "ninety-one million, fifty-three thousand, seven hundred seventy-three".