28858605 has 16 divisors (see below), whose sum is σ = 48890304. Its totient is φ = 14485760.

The previous prime is 28858603. The next prime is 28858607. The reversal of 28858605 is 50685882.

It is an interprime number because it is at equal distance from previous prime (28858603) and next prime (28858607).

It is not a de Polignac number, because 28858605 - 2¹ = 28858603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56331 + ... + 56840.

It is an arithmetic number, because the mean of its divisors is an integer number (3055644).

Almost surely, 2^28858605 is an apocalyptic number.

It is an amenable number.

28858605 is a deficient number, since it is larger than the sum of its proper divisors (20031699).

28858605 is a wasteful number, since it uses less digits than its factorization.

28858605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113196.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 28858605 is about 5372.0205695809. The cubic root of 28858605 is about 306.7315467379.

The spelling of 28858605 in words is "twenty-eight million, eight hundred fifty-eight thousand, six hundred five".