28793073 has 8 divisors (see below), whose sum is σ = 38435488. Its totient is φ = 19173024.

The previous prime is 28793057. The next prime is 28793077. The reversal of 28793073 is 37039782.

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

It is not a de Polignac number, because 28793073 - 2⁴ = 28793057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28793077) 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, 2311 + ... + 7932.

It is an arithmetic number, because the mean of its divisors is an integer number (4804436).

Almost surely, 2^28793073 is an apocalyptic number.

It is an amenable number.

28793073 is a deficient number, since it is larger than the sum of its proper divisors (9642415).

28793073 is a wasteful number, since it uses less digits than its factorization.

28793073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 28793073 is about 5365.9177220677. The cubic root of 28793073 is about 306.4991958691.

The spelling of 28793073 in words is "twenty-eight million, seven hundred ninety-three thousand, seventy-three".