28413 has 24 divisors (see below), whose sum is σ = 52416. Its totient is φ = 14400.

The previous prime is 28411. The next prime is 28429. The reversal of 28413 is 31482.

It is a happy number.

It is not a de Polignac number, because 28413 - 2¹ = 28411 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673 + ... + 713.

It is an arithmetic number, because the mean of its divisors is an integer number (2184).

2²⁸⁴¹³ is an apocalyptic number.

It is an amenable number.

28413 is a deficient number, since it is larger than the sum of its proper divisors (24003).

28413 is a wasteful number, since it uses less digits than its factorization.

28413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 62 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 28413 is about 168.5615614546. The cubic root of 28413 is about 30.5144605800.

Adding to 28413 its reverse (31482), we get a palindrome (59895).

It can be divided in two parts, 28 and 413, that added together give a square (441 = 21²).

The spelling of 28413 in words is "twenty-eight thousand, four hundred thirteen".