9170491 has 16 divisors (see below), whose sum is σ = 10614528. Its totient is φ = 7840800.

The previous prime is 9170489. The next prime is 9170519. The reversal of 9170491 is 1940719.

9170491 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 9170491 - 2¹ = 9170489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9170401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16681 + ... + 17221.

It is an arithmetic number, because the mean of its divisors is an integer number (663408).

Almost surely, 2^9170491 is an apocalyptic number.

9170491 is a deficient number, since it is larger than the sum of its proper divisors (1444037).

9170491 is a wasteful number, since it uses less digits than its factorization.

9170491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 9170491 is about 3028.2818561026. The cubic root of 9170491 is about 209.3136397307.

The spelling of 9170491 in words is "nine million, one hundred seventy thousand, four hundred ninety-one".