28429585 has 8 divisors (see below), whose sum is σ = 34384896. Its totient is φ = 22564080.

The previous prime is 28429553. The next prime is 28429591. The reversal of 28429585 is 58592482.

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

It is not a de Polignac number, because 28429585 - 2⁵ = 28429553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21751 + ... + 23020.

It is an arithmetic number, because the mean of its divisors is an integer number (4298112).

Almost surely, 2^28429585 is an apocalyptic number.

It is an amenable number.

28429585 is a deficient number, since it is larger than the sum of its proper divisors (5955311).

28429585 is a wasteful number, since it uses less digits than its factorization.

28429585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44903.

The product of its digits is 230400, while the sum is 43.

The square root of 28429585 is about 5331.9400784330. The cubic root of 28429585 is about 305.2039664084.

The spelling of 28429585 in words is "twenty-eight million, four hundred twenty-nine thousand, five hundred eighty-five".