28346 has 4 divisors (see below), whose sum is σ = 42522. Its totient is φ = 14172.

The previous prime is 28319. The next prime is 28349. The reversal of 28346 is 64382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64382 = 2 ⋅32191.

It can be written as a sum of positive squares in only one way, i.e., 19321 + 9025 = 139^2 + 95^2 .

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (28349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7085 + ... + 7088.

2²⁸³⁴⁶ is an apocalyptic number.

28346 is a deficient number, since it is larger than the sum of its proper divisors (14176).

28346 is a wasteful number, since it uses less digits than its factorization.

28346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14175.

The product of its digits is 1152, while the sum is 23.

The square root of 28346 is about 168.3627037084. The cubic root of 28346 is about 30.4904565681.

The spelling of 28346 in words is "twenty-eight thousand, three hundred forty-six".