86469 has 16 divisors (see below), whose sum is σ = 127680. Its totient is φ = 51840.

The previous prime is 86467. The next prime is 86477. The reversal of 86469 is 96468.

It is not a de Polignac number, because 86469 - 2¹ = 86467 is a prime.

It is a super-2 number, since 2×86469² = 14953775922, which contains 22 as substring.

86469 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86461) 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, 2089 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (7980).

2⁸⁶⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

86469 is a deficient number, since it is larger than the sum of its proper divisors (41211).

86469 is a wasteful number, since it uses less digits than its factorization.

86469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100.

The product of its digits is 10368, while the sum is 33.

The square root of 86469 is about 294.0561170933. The cubic root of 86469 is about 44.2201432862.

Subtracting from 86469 its sum of digits (33), we obtain a square (86436 = 294²).

Subtracting 86469 from its reverse (96468), we obtain a palindrome (9999).

It can be divided in two parts, 86 and 469, that added together give a palindrome (555).

The spelling of 86469 in words is "eighty-six thousand, four hundred sixty-nine".