28003079 has 8 divisors (see below), whose sum is σ = 30376080. Its totient is φ = 25661376.

The previous prime is 28003069. The next prime is 28003099. The reversal of 28003079 is 97030082.

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

It is not a de Polignac number, because 28003079 - 2⁸ = 28002823 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 (28003069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5942 + ... + 9555.

It is an arithmetic number, because the mean of its divisors is an integer number (3797010).

Almost surely, 2^28003079 is an apocalyptic number.

28003079 is a deficient number, since it is larger than the sum of its proper divisors (2373001).

28003079 is a wasteful number, since it uses less digits than its factorization.

28003079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 28003079 is about 5291.7935522845. The cubic root of 28003079 is about 303.6700273242.

The spelling of 28003079 in words is "twenty-eight million, three thousand, seventy-nine".