28024073 has 8 divisors (see below), whose sum is σ = 34939200. Its totient is φ = 21836880.

The previous prime is 28024057. The next prime is 28024091. The reversal of 28024073 is 37042082.

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 28024073 - 2⁴ = 28024057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28024273) 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, 181898 + ... + 182051.

It is an arithmetic number, because the mean of its divisors is an integer number (4367400).

Almost surely, 2^28024073 is an apocalyptic number.

It is an amenable number.

28024073 is a deficient number, since it is larger than the sum of its proper divisors (6915127).

28024073 is a wasteful number, since it uses less digits than its factorization.

28024073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363967.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 28024073 is about 5293.7768181139. The cubic root of 28024073 is about 303.7458958389.

Subtracting 28024073 from its reverse (37042082), we obtain a square (9018009 = 3003²).

The spelling of 28024073 in words is "twenty-eight million, twenty-four thousand, seventy-three".