28574727 has 16 divisors (see below), whose sum is σ = 40225920. Its totient is φ = 17992800.

The previous prime is 28574723. The next prime is 28574737. The reversal of 28574727 is 72747582.

It is not a de Polignac number, because 28574727 - 2² = 28574723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27477 + ... + 28497.

It is an arithmetic number, because the mean of its divisors is an integer number (2514120).

Almost surely, 2^28574727 is an apocalyptic number.

28574727 is a deficient number, since it is larger than the sum of its proper divisors (11651193).

28574727 is a wasteful number, since it uses less digits than its factorization.

28574727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its digits is 219520, while the sum is 42.

The square root of 28574727 is about 5345.5333690849. The cubic root of 28574727 is about 305.7224725378.

The spelling of 28574727 in words is "twenty-eight million, five hundred seventy-four thousand, seven hundred twenty-seven".