28002339 has 12 divisors (see below), whose sum is σ = 42206736. Its totient is φ = 17856432.

The previous prime is 28002323. The next prime is 28002347. The reversal of 28002339 is 93320082.

It is not a de Polignac number, because 28002339 - 2⁴ = 28002323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28002379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67432 + ... + 67845.

It is an arithmetic number, because the mean of its divisors is an integer number (3517228).

Almost surely, 2^28002339 is an apocalyptic number.

28002339 is a deficient number, since it is larger than the sum of its proper divisors (14204397).

28002339 is a wasteful number, since it uses less digits than its factorization.

28002339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135306 (or 135303 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 28002339 is about 5291.7236322393. The cubic root of 28002339 is about 303.6673524064.

The spelling of 28002339 in words is "twenty-eight million, two thousand, three hundred thirty-nine".