28063535 has 8 divisors (see below), whose sum is σ = 33761040. Its totient is φ = 22394304.

The previous prime is 28063523. The next prime is 28063537. The reversal of 28063535 is 53536082.

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 28063535 - 2⁶ = 28063471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (4220130).

Almost surely, 2^28063535 is an apocalyptic number.

28063535 is a deficient number, since it is larger than the sum of its proper divisors (5697505).

28063535 is a wasteful number, since it uses less digits than its factorization.

28063535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14137.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 28063535 is about 5297.5027135434. The cubic root of 28063535 is about 303.8884018756. Note that the first 3 decimals are identical.

The spelling of 28063535 in words is "twenty-eight million, sixty-three thousand, five hundred thirty-five".