28517339 has 8 divisors (see below), whose sum is σ = 29242512. Its totient is φ = 27799200.

The previous prime is 28517327. The next prime is 28517371. The reversal of 28517339 is 93371582.

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 28517339 - 2²⁴ = 11740123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28517399) 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, 6989 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (3655314).

Almost surely, 2^28517339 is an apocalyptic number.

28517339 is a deficient number, since it is larger than the sum of its proper divisors (725173).

28517339 is a wasteful number, since it uses less digits than its factorization.

28517339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517.

The product of its digits is 45360, while the sum is 38.

The square root of 28517339 is about 5340.1628252330. The cubic root of 28517339 is about 305.5176696510.

The spelling of 28517339 in words is "twenty-eight million, five hundred seventeen thousand, three hundred thirty-nine".