86169669 has 8 divisors (see below), whose sum is σ = 115001472. Its totient is φ = 57392160.

The previous prime is 86169649. The next prime is 86169683. The reversal of 86169669 is 96696168.

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

It is not a de Polignac number, because 86169669 - 2⁹ = 86169157 is a prime.

It is a super-2 number, since 2×86169669² = 14850423711139122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86169649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9712 + ... + 16329.

It is an arithmetic number, because the mean of its divisors is an integer number (14375184).

Almost surely, 2^86169669 is an apocalyptic number.

It is an amenable number.

86169669 is a deficient number, since it is larger than the sum of its proper divisors (28831803).

86169669 is a wasteful number, since it uses less digits than its factorization.

86169669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27147.

The product of its digits is 839808, while the sum is 51.

The square root of 86169669 is about 9282.7619273576. The cubic root of 86169669 is about 441.6905845518.

The spelling of 86169669 in words is "eighty-six million, one hundred sixty-nine thousand, six hundred sixty-nine".