28424773 has 8 divisors (see below), whose sum is σ = 30846816. Its totient is φ = 26036400.

The previous prime is 28424771. The next prime is 28424791. The reversal of 28424773 is 37742482.

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

It is not a de Polignac number, because 28424773 - 2¹ = 28424771 is a prime.

It is a super-3 number, since 3×28424773³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28424771) 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, 6643 + ... + 10048.

It is an arithmetic number, because the mean of its divisors is an integer number (3855852).

Almost surely, 2^28424773 is an apocalyptic number.

It is an amenable number.

28424773 is a deficient number, since it is larger than the sum of its proper divisors (2422043).

28424773 is a wasteful number, since it uses less digits than its factorization.

28424773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16835.

The product of its digits is 75264, while the sum is 37.

The square root of 28424773 is about 5331.4888164564. The cubic root of 28424773 is about 305.1867457987.

The spelling of 28424773 in words is "twenty-eight million, four hundred twenty-four thousand, seven hundred seventy-three".