28706254 has 8 divisors (see below), whose sum is σ = 44931600. Its totient is φ = 13729056.

The previous prime is 28706243. The next prime is 28706257. The reversal of 28706254 is 45260782.

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 (28706257) 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 3 ways as a sum of consecutive naturals, for example, 311979 + ... + 312070.

It is an arithmetic number, because the mean of its divisors is an integer number (5616450).

Almost surely, 2^28706254 is an apocalyptic number.

28706254 is a deficient number, since it is larger than the sum of its proper divisors (16225346).

28706254 is a wasteful number, since it uses less digits than its factorization.

28706254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624074.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28706254 is about 5357.8217588867. The cubic root of 28706254 is about 306.1908260515.

The spelling of 28706254 in words is "twenty-eight million, seven hundred six thousand, two hundred fifty-four".