28535205 has 8 divisors (see below), whose sum is σ = 45656352. Its totient is φ = 15218768.

The previous prime is 28535167. The next prime is 28535261. The reversal of 28535205 is 50253582.

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 28535205 - 2⁶ = 28535141 is a prime.

It is a congruent 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, 951159 + ... + 951188.

It is an arithmetic number, because the mean of its divisors is an integer number (5707044).

Almost surely, 2^28535205 is an apocalyptic number.

It is an amenable number.

28535205 is a deficient number, since it is larger than the sum of its proper divisors (17121147).

28535205 is a wasteful number, since it uses less digits than its factorization.

28535205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902355.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 28535205 is about 5341.8353587508. The cubic root of 28535205 is about 305.5814582020.

Adding to 28535205 its sum of digits (30), we get a triangular number (28535235 = T₇₅₅₄).

Adding to 28535205 its reverse (50253582), we get a palindrome (78788787).

The spelling of 28535205 in words is "twenty-eight million, five hundred thirty-five thousand, two hundred five".