28793715 has 8 divisors (see below), whose sum is σ = 46069968. Its totient is φ = 15356640.

The previous prime is 28793651. The next prime is 28793729. The reversal of 28793715 is 51739782.

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

It is not a de Polignac number, because 28793715 - 2⁶ = 28793651 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 959776 + ... + 959805.

It is an arithmetic number, because the mean of its divisors is an integer number (5758746).

Almost surely, 2^28793715 is an apocalyptic number.

28793715 is a deficient number, since it is larger than the sum of its proper divisors (17276253).

28793715 is a wasteful number, since it uses less digits than its factorization.

28793715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919589.

The product of its digits is 105840, while the sum is 42.

The square root of 28793715 is about 5365.9775437473. The cubic root of 28793715 is about 306.5014738594.

The spelling of 28793715 in words is "twenty-eight million, seven hundred ninety-three thousand, seven hundred fifteen".