28146715 has 8 divisors (see below), whose sum is σ = 33954048. Its totient is φ = 22398720.

The previous prime is 28146697. The next prime is 28146719. The reversal of 28146715 is 51764182.

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

It is a de Polignac number, because none of the positive numbers 2^k-28146715 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28146719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13782 + ... + 15691.

It is an arithmetic number, because the mean of its divisors is an integer number (4244256).

Almost surely, 2^28146715 is an apocalyptic number.

28146715 is a deficient number, since it is larger than the sum of its proper divisors (5807333).

28146715 is a wasteful number, since it uses less digits than its factorization.

28146715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29669.

The product of its digits is 13440, while the sum is 34.

The square root of 28146715 is about 5305.3477737091. The cubic root of 28146715 is about 304.1883463207.

The spelling of 28146715 in words is "twenty-eight million, one hundred forty-six thousand, seven hundred fifteen".