28269073 has 8 divisors (see below), whose sum is σ = 33180992. Its totient is φ = 23575536.

The previous prime is 28269067. The next prime is 28269077. The reversal of 28269073 is 37096282.

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 28269073 - 2²¹ = 26171921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28269077) 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, 54315 + ... + 54832.

It is an arithmetic number, because the mean of its divisors is an integer number (4147624).

Almost surely, 2^28269073 is an apocalyptic number.

It is an amenable number.

28269073 is a deficient number, since it is larger than the sum of its proper divisors (4911919).

28269073 is a wasteful number, since it uses less digits than its factorization.

28269073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109191.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 28269073 is about 5316.8668405368. The cubic root of 28269073 is about 304.6284932921.

The spelling of 28269073 in words is "twenty-eight million, two hundred sixty-nine thousand, seventy-three".