91340763 has 4 divisors (see below), whose sum is σ = 121787688. Its totient is φ = 60893840.

The previous prime is 91340761. The next prime is 91340773. The reversal of 91340763 is 36704319.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91340763 - 2¹ = 91340761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91340761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15223458 + ... + 15223463.

It is an arithmetic number, because the mean of its divisors is an integer number (30446922).

Almost surely, 2^91340763 is an apocalyptic number.

91340763 is a deficient number, since it is larger than the sum of its proper divisors (30446925).

91340763 is a wasteful number, since it uses less digits than its factorization.

91340763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30446924.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 91340763 is about 9557.2361590577. The cubic root of 91340763 is about 450.3548854836.

The spelling of 91340763 in words is "ninety-one million, three hundred forty thousand, seven hundred sixty-three".