28358 has 8 divisors (see below), whose sum is σ = 46440. Its totient is φ = 12880.

The previous prime is 28351. The next prime is 28387. The reversal of 28358 is 85382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28351) 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, 623 + ... + 666.

It is an arithmetic number, because the mean of its divisors is an integer number (5805).

2²⁸³⁵⁸ is an apocalyptic number.

28358 is a deficient number, since it is larger than the sum of its proper divisors (18082).

28358 is a wasteful number, since it uses less digits than its factorization.

28358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its digits is 1920, while the sum is 26.

The square root of 28358 is about 168.3983372840. The cubic root of 28358 is about 30.4947585726.

The spelling of 28358 in words is "twenty-eight thousand, three hundred fifty-eight".