28710472 has 32 divisors (see below), whose sum is σ = 62784000. Its totient is φ = 12303312.

The previous prime is 28710469. The next prime is 28710499. The reversal of 28710472 is 27401782.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2488 + ... + 7975.

It is an arithmetic number, because the mean of its divisors is an integer number (1962000).

Almost surely, 2^28710472 is an apocalyptic number.

It is an amenable number.

28710472 is an abundant number, since it is smaller than the sum of its proper divisors (34073528).

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

28710472 is a wasteful number, since it uses less digits than its factorization.

28710472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10490 (or 10472 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 28710472 is about 5358.2153745440. The cubic root of 28710472 is about 306.2058221989.

The spelling of 28710472 in words is "twenty-eight million, seven hundred ten thousand, four hundred seventy-two".