28754 has 8 divisors (see below), whose sum is σ = 47088. Its totient is φ = 13060.
The previous prime is 28753. The next prime is 28759. The reversal of 28754 is 45782.
It is a sphenic number, since it is the product of 3 distinct primes.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28754.
It is not an unprimeable number, because it can be changed into a prime (28751) 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, 632 + ... + 675.
It is an arithmetic number, because the mean of its divisors is an integer number (5886).
228754 is an apocalyptic number.
28754 is a deficient number, since it is larger than the sum of its proper divisors (18334).
28754 is a wasteful number, since it uses less digits than its factorization.
28754 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1320.
The product of its digits is 2240, while the sum is 26.
The square root of 28754 is about 169.5700445244. The cubic root of 28754 is about 30.6360490466.
It can be divided in two parts, 28 and 754, that multiplied together give a palindrome (21112).
The spelling of 28754 in words is "twenty-eight thousand, seven hundred fifty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •