28574745 has 32 divisors (see below), whose sum is σ = 47416320. Its totient is φ = 14684160.

The previous prime is 28574743. The next prime is 28574753. The reversal of 28574745 is 54747582.

It is not a de Polignac number, because 28574745 - 2¹ = 28574743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28574697 and 28574706.

It is not an unprimeable number, because it can be changed into a prime (28574743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59416 + ... + 59894.

It is an arithmetic number, because the mean of its divisors is an integer number (1481760).

Almost surely, 2^28574745 is an apocalyptic number.

It is an amenable number.

28574745 is a deficient number, since it is larger than the sum of its proper divisors (18841575).

28574745 is a wasteful number, since it uses less digits than its factorization.

28574745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its digits is 313600, while the sum is 42.

The square root of 28574745 is about 5345.5350527333. The cubic root of 28574745 is about 305.7225367321.

The spelling of 28574745 in words is "twenty-eight million, five hundred seventy-four thousand, seven hundred forty-five".