28713210 has 16 divisors (see below), whose sum is σ = 68911776. Its totient is φ = 7656848.

The previous prime is 28713203. The next prime is 28713229. The reversal of 28713210 is 1231782.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 478524 + ... + 478583.

It is an arithmetic number, because the mean of its divisors is an integer number (4306986).

Almost surely, 2^28713210 is an apocalyptic number.

28713210 is an abundant number, since it is smaller than the sum of its proper divisors (40198566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28713210 is a wasteful number, since it uses less digits than its factorization.

28713210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957117.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 28713210 is about 5358.4708639686. The cubic root of 28713210 is about 306.2155557541.

Adding to 28713210 its reverse (1231782), we get a palindrome (29944992).

The spelling of 28713210 in words is "twenty-eight million, seven hundred thirteen thousand, two hundred ten".