28284754 has 4 divisors (see below), whose sum is σ = 42427134. Its totient is φ = 14142376.

The previous prime is 28284743. The next prime is 28284757. The reversal of 28284754 is 45748282.

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

It can be written as a sum of positive squares in only one way, i.e., 22306729 + 5978025 = 4723^2 + 2445^2 .

It is not an unprimeable number, because it can be changed into a prime (28284757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7071187 + ... + 7071190.

Almost surely, 2^28284754 is an apocalyptic number.

28284754 is a deficient number, since it is larger than the sum of its proper divisors (14142380).

28284754 is a wasteful number, since it uses less digits than its factorization.

28284754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14142379.

The product of its digits is 143360, while the sum is 40.

The square root of 28284754 is about 5318.3412827685. The cubic root of 28284754 is about 304.6848092105.

The spelling of 28284754 in words is "twenty-eight million, two hundred eighty-four thousand, seven hundred fifty-four".