28058385 has 16 divisors (see below), whose sum is σ = 44968896. Its totient is φ = 14939328.

The previous prime is 28058377. The next prime is 28058411. The reversal of 28058385 is 58385082.

It is not a de Polignac number, because 28058385 - 2³ = 28058377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10782 + ... + 13128.

It is an arithmetic number, because the mean of its divisors is an integer number (2810556).

Almost surely, 2^28058385 is an apocalyptic number.

It is an amenable number.

28058385 is a deficient number, since it is larger than the sum of its proper divisors (16910511).

28058385 is a wasteful number, since it uses less digits than its factorization.

28058385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 28058385 is about 5297.0166131512. The cubic root of 28058385 is about 303.8698116658.

The spelling of 28058385 in words is "twenty-eight million, fifty-eight thousand, three hundred eighty-five".