28241715 has 8 divisors (see below), whose sum is σ = 45186768. Its totient is φ = 15062240.

The previous prime is 28241711. The next prime is 28241749. The reversal of 28241715 is 51714282.

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

It is not a de Polignac number, because 28241715 - 2² = 28241711 is a prime.

It is a super-2 number, since 2×28241715² = 1595188932282450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28241711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941376 + ... + 941405.

It is an arithmetic number, because the mean of its divisors is an integer number (5648346).

Almost surely, 2^28241715 is an apocalyptic number.

28241715 is a deficient number, since it is larger than the sum of its proper divisors (16945053).

28241715 is a wasteful number, since it uses less digits than its factorization.

28241715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882789.

The product of its digits is 4480, while the sum is 30.

The square root of 28241715 is about 5314.2934619759. The cubic root of 28241715 is about 304.5301913275.

Adding to 28241715 its reverse (51714282), we get a palindrome (79955997).

The spelling of 28241715 in words is "twenty-eight million, two hundred forty-one thousand, seven hundred fifteen".