91317469 has 4 divisors (see below), whose sum is σ = 91338400. Its totient is φ = 91296540.

The previous prime is 91317467. The next prime is 91317503. The reversal of 91317469 is 96471319.

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.

It is a cyclic number.

It is not a de Polignac number, because 91317469 - 2¹ = 91317467 is a prime.

It is a super-2 number, since 2×91317469² = 16677760289131922, 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 (91317461) 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, 1167 + ... + 13564.

It is an arithmetic number, because the mean of its divisors is an integer number (22834600).

Almost surely, 2^91317469 is an apocalyptic number.

It is an amenable number.

91317469 is a deficient number, since it is larger than the sum of its proper divisors (20931).

91317469 is a wasteful number, since it uses less digits than its factorization.

91317469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20930.

The product of its digits is 40824, while the sum is 40.

The square root of 91317469 is about 9556.0174235923. The cubic root of 91317469 is about 450.3165986032.

The spelling of 91317469 in words is "ninety-one million, three hundred seventeen thousand, four hundred sixty-nine".