28339737 has 8 divisors (see below), whose sum is σ = 38058720. Its totient is φ = 18756960.

The previous prime is 28339723. The next prime is 28339739. The reversal of 28339737 is 73793382.

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

It is not a de Polignac number, because 28339737 - 2¹⁴ = 28323353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28339739) 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, 33564 + ... + 34397.

It is an arithmetic number, because the mean of its divisors is an integer number (4757340).

Almost surely, 2^28339737 is an apocalyptic number.

It is an amenable number.

28339737 is a deficient number, since it is larger than the sum of its proper divisors (9718983).

28339737 is a wasteful number, since it uses less digits than its factorization.

28339737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68103.

The product of its digits is 190512, while the sum is 42.

The square root of 28339737 is about 5323.5079599828. The cubic root of 28339737 is about 304.8821079799.

The spelling of 28339737 in words is "twenty-eight million, three hundred thirty-nine thousand, seven hundred thirty-seven".