961686169 has 8 divisors (see below), whose sum is σ = 966645792. Its totient is φ = 956736000.

The previous prime is 961686163. The next prime is 961686221.

961686169 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 961686169 - 2⁵ = 961686137 is a prime.

It is a super-2 number, since 2×961686169² = 1849680575291793122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961686163) 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, 287742 + ... + 291064.

It is an arithmetic number, because the mean of its divisors is an integer number (120830724).

Almost surely, 2^961686169 is an apocalyptic number.

It is an amenable number.

961686169 is a deficient number, since it is larger than the sum of its proper divisors (4959623).

961686169 is a wasteful number, since it uses less digits than its factorization.

961686169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727.

The product of its digits is 839808, while the sum is 52.

The square root of 961686169 is about 31011.0652670946. The cubic root of 961686169 is about 987.0620544613.

The spelling of 961686169 in words is "nine hundred sixty-one million, six hundred eighty-six thousand, one hundred sixty-nine".