91269743 has 4 divisors (see below), whose sum is σ = 91514808. Its totient is φ = 91024680.

The previous prime is 91269709. The next prime is 91269769. The reversal of 91269743 is 34796219.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34796219 = 137 ⋅253987.

It is a cyclic number.

It is not a de Polignac number, because 91269743 - 2¹⁰ = 91268719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91269743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91269443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121973 + ... + 122718.

It is an arithmetic number, because the mean of its divisors is an integer number (22878702).

Almost surely, 2^91269743 is an apocalyptic number.

91269743 is a deficient number, since it is larger than the sum of its proper divisors (245065).

91269743 is a wasteful number, since it uses less digits than its factorization.

91269743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245064.

The product of its digits is 81648, while the sum is 41.

The square root of 91269743 is about 9553.5199272310. The cubic root of 91269743 is about 450.2381340427.

The spelling of 91269743 in words is "ninety-one million, two hundred sixty-nine thousand, seven hundred forty-three".