28053071 has 8 divisors (see below), whose sum is σ = 28789200. Its totient is φ = 27320832.

The previous prime is 28053049. The next prime is 28053089. The reversal of 28053071 is 17035082.

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 28053071 - 2¹⁰ = 28052047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28053071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28053001) 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, 18581 + ... + 20033.

It is an arithmetic number, because the mean of its divisors is an integer number (3598650).

Almost surely, 2^28053071 is an apocalyptic number.

28053071 is a deficient number, since it is larger than the sum of its proper divisors (736129).

28053071 is a wasteful number, since it uses less digits than its factorization.

28053071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 28053071 is about 5296.5149862905. The cubic root of 28053071 is about 303.8506270723.

The spelling of 28053071 in words is "twenty-eight million, fifty-three thousand, seventy-one".