28860717 has 8 divisors (see below), whose sum is σ = 38548224. Its totient is φ = 19206848.

The previous prime is 28860691. The next prime is 28860731. The reversal of 28860717 is 71706882.

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 28860717 - 2⁷ = 28860589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860757) 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, 6333 + ... + 9890.

It is an arithmetic number, because the mean of its divisors is an integer number (4818528).

Almost surely, 2^28860717 is an apocalyptic number.

It is an amenable number.

28860717 is a deficient number, since it is larger than the sum of its proper divisors (9687507).

28860717 is a wasteful number, since it uses less digits than its factorization.

28860717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16819.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 28860717 is about 5372.2171400642. The cubic root of 28860717 is about 306.7390292112.

The spelling of 28860717 in words is "twenty-eight million, eight hundred sixty thousand, seven hundred seventeen".