91117349 has 8 divisors (see below), whose sum is σ = 93353088. Its totient is φ = 88894080.

The previous prime is 91117337. The next prime is 91117357. The reversal of 91117349 is 94371119.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91117349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91117319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12629 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (11669136).

Almost surely, 2^91117349 is an apocalyptic number.

It is an amenable number.

91117349 is a deficient number, since it is larger than the sum of its proper divisors (2235739).

91117349 is a wasteful number, since it uses less digits than its factorization.

91117349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235.

The product of its digits is 6804, while the sum is 35.

The square root of 91117349 is about 9545.5407913853. The cubic root of 91117349 is about 449.9874054088.

The spelling of 91117349 in words is "ninety-one million, one hundred seventeen thousand, three hundred forty-nine".