87223 has 2 divisors, whose sum is σ = 87224. Its totient is φ = 87222.

The previous prime is 87221. The next prime is 87251. The reversal of 87223 is 32278.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87223 - 2¹ = 87221 is a prime.

Together with 87221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 87194 and 87203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43611 + 43612.

It is an arithmetic number, because the mean of its divisors is an integer number (43612).

2⁸⁷²²³ is an apocalyptic number.

87223 is a deficient number, since it is larger than the sum of its proper divisors (1).

87223 is an equidigital number, since it uses as much as digits as its factorization.

87223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 22.

The square root of 87223 is about 295.3354025511. The cubic root of 87223 is about 44.3483030584.

Subtracting from 87223 its reverse (32278), we obtain a palindrome (54945).

The spelling of 87223 in words is "eighty-seven thousand, two hundred twenty-three".