91369093 has 4 divisors (see below), whose sum is σ = 91716768. Its totient is φ = 91021420.

The previous prime is 91369079. The next prime is 91369129. The reversal of 91369093 is 39096319.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39096319 = 19 ⋅2057701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91369093 is a prime.

It is a super-2 number, since 2×91369093² = 16696622311285298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91369013) 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 in 3 ways as a sum of consecutive naturals, for example, 173443 + ... + 173968.

It is an arithmetic number, because the mean of its divisors is an integer number (22929192).

Almost surely, 2^91369093 is an apocalyptic number.

It is an amenable number.

91369093 is a deficient number, since it is larger than the sum of its proper divisors (347675).

91369093 is a wasteful number, since it uses less digits than its factorization.

91369093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347674.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 91369093 is about 9558.7181672021. The cubic root of 91369093 is about 450.4014409486.

The spelling of 91369093 in words is "ninety-one million, three hundred sixty-nine thousand, ninety-three".