28788614 has 8 divisors (see below), whose sum is σ = 43523328. Its totient is φ = 14280840.

The previous prime is 28788611. The next prime is 28788647. The reversal of 28788614 is 41688782.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28788611) 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, 56417 + ... + 56924.

It is an arithmetic number, because the mean of its divisors is an integer number (5440416).

Almost surely, 2^28788614 is an apocalyptic number.

28788614 is a deficient number, since it is larger than the sum of its proper divisors (14734714).

28788614 is a wasteful number, since it uses less digits than its factorization.

28788614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113470.

The product of its digits is 172032, while the sum is 44.

The square root of 28788614 is about 5365.5022132136. The cubic root of 28788614 is about 306.4833731922.

The spelling of 28788614 in words is "twenty-eight million, seven hundred eighty-eight thousand, six hundred fourteen".