28341215 has 8 divisors (see below), whose sum is σ = 38868000. Its totient is φ = 19433952.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341215 is 51214382.

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

It is a cyclic number.

It is not a de Polignac number, because 28341215 - 2⁸ = 28340959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404840 + ... + 404909.

It is an arithmetic number, because the mean of its divisors is an integer number (4858500).

Almost surely, 2^28341215 is an apocalyptic number.

28341215 is a deficient number, since it is larger than the sum of its proper divisors (10526785).

28341215 is an equidigital number, since it uses as much as digits as its factorization.

28341215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809761.

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

The square root of 28341215 is about 5323.6467764118. The cubic root of 28341215 is about 304.8874080517.

Adding to 28341215 its reverse (51214382), we get a palindrome (79555597).

The spelling of 28341215 in words is "twenty-eight million, three hundred forty-one thousand, two hundred fifteen".