17113661 has 4 divisors (see below), whose sum is σ = 18014400. Its totient is φ = 16212924.

The previous prime is 17113639. The next prime is 17113697. The reversal of 17113661 is 16631171.

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: 16631171 = 499 ⋅33329.

It is a cyclic number.

It is not a de Polignac number, because 17113661 - 2¹⁰ = 17112637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17113661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17113561) 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, 450341 + ... + 450378.

It is an arithmetic number, because the mean of its divisors is an integer number (4503600).

Almost surely, 2^17113661 is an apocalyptic number.

It is an amenable number.

17113661 is a deficient number, since it is larger than the sum of its proper divisors (900739).

17113661 is an equidigital number, since it uses as much as digits as its factorization.

17113661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900738.

The product of its digits is 756, while the sum is 26.

The square root of 17113661 is about 4136.8660843687. The cubic root of 17113661 is about 257.6999345824.

The spelling of 17113661 in words is "seventeen million, one hundred thirteen thousand, six hundred sixty-one".