28114791 has 4 divisors (see below), whose sum is σ = 37486392. Its totient is φ = 18743192.

The previous prime is 28114747. The next prime is 28114811. The reversal of 28114791 is 19741182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28114791 - 2¹¹ = 28112743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4685796 + ... + 4685801.

It is an arithmetic number, because the mean of its divisors is an integer number (9371598).

Almost surely, 2^28114791 is an apocalyptic number.

28114791 is a deficient number, since it is larger than the sum of its proper divisors (9371601).

28114791 is an equidigital number, since it uses as much as digits as its factorization.

28114791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9371600.

The product of its digits is 4032, while the sum is 33.

The square root of 28114791 is about 5302.3382577878. The cubic root of 28114791 is about 304.0732993552.

The spelling of 28114791 in words is "twenty-eight million, one hundred fourteen thousand, seven hundred ninety-one".