91063759 has 2 divisors, whose sum is σ = 91063760. Its totient is φ = 91063758.

The previous prime is 91063757. The next prime is 91063783. The reversal of 91063759 is 95736019.

It is a weak prime.

It is an emirp because it is prime and its reverse (95736019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91063759 - 2¹ = 91063757 is a prime.

Together with 91063757, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91063757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45531879 + 45531880.

It is an arithmetic number, because the mean of its divisors is an integer number (45531880).

Almost surely, 2^91063759 is an apocalyptic number.

91063759 is a deficient number, since it is larger than the sum of its proper divisors (1).

91063759 is an equidigital number, since it uses as much as digits as its factorization.

91063759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 91063759 is about 9542.7333086490. The cubic root of 91063759 is about 449.8991691782.

The spelling of 91063759 in words is "ninety-one million, sixty-three thousand, seven hundred fifty-nine".