28027653 has 8 divisors (see below), whose sum is σ = 37564608. Its totient is φ = 18587904.

The previous prime is 28027621. The next prime is 28027697. The reversal of 28027653 is 35672082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28027653 - 2⁵ = 28027621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28027453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23625 + ... + 24782.

It is an arithmetic number, because the mean of its divisors is an integer number (4695576).

Almost surely, 2^28027653 is an apocalyptic number.

It is an amenable number.

28027653 is a deficient number, since it is larger than the sum of its proper divisors (9536955).

28027653 is a wasteful number, since it uses less digits than its factorization.

28027653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48603.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 28027653 is about 5294.1149401954. The cubic root of 28027653 is about 303.7588295288.

It can be divided in two parts, 28027 and 653, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 28027653 in words is "twenty-eight million, twenty-seven thousand, six hundred fifty-three".