28200535 has 16 divisors (see below), whose sum is σ = 39089952. Its totient is φ = 19302400.

The previous prime is 28200533. The next prime is 28200559. The reversal of 28200535 is 53500282.

It is not a de Polignac number, because 28200535 - 2¹ = 28200533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28200533) 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, 14146 + ... + 16015.

It is an arithmetic number, because the mean of its divisors is an integer number (2443122).

Almost surely, 2^28200535 is an apocalyptic number.

28200535 is a deficient number, since it is larger than the sum of its proper divisors (10889417).

28200535 is a wasteful number, since it uses less digits than its factorization.

28200535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30194.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 28200535 is about 5310.4175918660. The cubic root of 28200535 is about 304.3821047889.

The spelling of 28200535 in words is "twenty-eight million, two hundred thousand, five hundred thirty-five".