87369 has 4 divisors (see below), whose sum is σ = 116496. Its totient is φ = 58244.

The previous prime is 87359. The next prime is 87383. The reversal of 87369 is 96378.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 87369 - 2⁵ = 87337 is a prime.

It is a super-2 number, since 2×87369² = 15266684322, which contains 22 as substring.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87369.

It is not an unprimeable number, because it can be changed into a prime (87359) 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, 14559 + ... + 14564.

It is an arithmetic number, because the mean of its divisors is an integer number (29124).

2⁸⁷³⁶⁹ is an apocalyptic number.

It is an amenable number.

87369 is a deficient number, since it is larger than the sum of its proper divisors (29127).

87369 is a wasteful number, since it uses less digits than its factorization.

87369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29126.

The product of its digits is 9072, while the sum is 33.

The square root of 87369 is about 295.5824757999. The cubic root of 87369 is about 44.3730337025.

Subtracting 87369 from its reverse (96378), we obtain a palindrome (9009).

The spelling of 87369 in words is "eighty-seven thousand, three hundred sixty-nine".