28669593 has 8 divisors (see below), whose sum is σ = 38263456. Its totient is φ = 19094400.

The previous prime is 28669591. The next prime is 28669639. The reversal of 28669593 is 39596682.

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

It is not a de Polignac number, because 28669593 - 2¹ = 28669591 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28669591) 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, 568 + ... + 7593.

It is an arithmetic number, because the mean of its divisors is an integer number (4782932).

Almost surely, 2^28669593 is an apocalyptic number.

It is an amenable number.

28669593 is a deficient number, since it is larger than the sum of its proper divisors (9593863).

28669593 is a wasteful number, since it uses less digits than its factorization.

28669593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9335.

The product of its digits is 699840, while the sum is 48.

The square root of 28669593 is about 5354.3994060959. The cubic root of 28669593 is about 306.0604242246.

The spelling of 28669593 in words is "twenty-eight million, six hundred sixty-nine thousand, five hundred ninety-three".