91617163 has 8 divisors (see below), whose sum is σ = 100155456. Its totient is φ = 83113800.

The previous prime is 91617151. The next prime is 91617173. The reversal of 91617163 is 36171619.

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

It is not a de Polignac number, because 91617163 - 2¹⁷ = 91486091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91617173) 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, 3081 + ... + 13882.

It is an arithmetic number, because the mean of its divisors is an integer number (12519432).

Almost surely, 2^91617163 is an apocalyptic number.

91617163 is a deficient number, since it is larger than the sum of its proper divisors (8538293).

91617163 is a wasteful number, since it uses less digits than its factorization.

91617163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17465.

The product of its digits is 6804, while the sum is 34.

The square root of 91617163 is about 9571.6854837589. The cubic root of 91617163 is about 450.8086906951.

The spelling of 91617163 in words is "ninety-one million, six hundred seventeen thousand, one hundred sixty-three".