86488469 has 8 divisors (see below), whose sum is σ = 94734360. Its totient is φ = 78593536.

The previous prime is 86488459. The next prime is 86488471. The reversal of 86488469 is 96488468.

It can be written as a sum of positive squares in 4 ways, for example, as 11458225 + 75030244 = 3385^2 + 8662^2 .

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 86488469 - 2¹² = 86484373 is a prime.

It is a super-4 number, since 4×86488469⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 86488469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86488439) 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, 87224 + ... + 88209.

It is an arithmetic number, because the mean of its divisors is an integer number (11841795).

Almost surely, 2^86488469 is an apocalyptic number.

It is an amenable number.

86488469 is a deficient number, since it is larger than the sum of its proper divisors (8245891).

86488469 is a wasteful number, since it uses less digits than its factorization.

86488469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175479.

The product of its digits is 2654208, while the sum is 53.

The square root of 86488469 is about 9299.9176878078. The cubic root of 86488469 is about 442.2346184495.

Subtracting 86488469 from its reverse (96488468), we obtain a palindrome (9999999).

The spelling of 86488469 in words is "eighty-six million, four hundred eighty-eight thousand, four hundred sixty-nine".