28713711 has 8 divisors (see below), whose sum is σ = 41230000. Its totient is φ = 17669952.

The previous prime is 28713701. The next prime is 28713733. The reversal of 28713711 is 11731782.

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

It is not a de Polignac number, because 28713711 - 2¹⁰ = 28712687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28713701) 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, 368086 + ... + 368163.

It is an arithmetic number, because the mean of its divisors is an integer number (5153750).

Almost surely, 2^28713711 is an apocalyptic number.

28713711 is a deficient number, since it is larger than the sum of its proper divisors (12516289).

28713711 is a wasteful number, since it uses less digits than its factorization.

28713711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736265.

The product of its digits is 2352, while the sum is 30.

The square root of 28713711 is about 5358.5176121760. The cubic root of 28713711 is about 306.2173367358.

The spelling of 28713711 in words is "twenty-eight million, seven hundred thirteen thousand, seven hundred eleven".