28574826 has 16 divisors (see below), whose sum is σ = 65313984. Its totient is φ = 8164224.

The previous prime is 28574797. The next prime is 28574837. The reversal of 28574826 is 62847582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 680353 = 28574826 / (2 + 8 + 5 + 7 + 4 + 8 + 2 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340135 + ... + 340218.

It is an arithmetic number, because the mean of its divisors is an integer number (4082124).

Almost surely, 2^28574826 is an apocalyptic number.

28574826 is an abundant number, since it is smaller than the sum of its proper divisors (36739158).

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

28574826 is a wasteful number, since it uses less digits than its factorization.

28574826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680365.

The product of its digits is 215040, while the sum is 42.

The square root of 28574826 is about 5345.5426291444. The cubic root of 28574826 is about 305.7228256061.

The spelling of 28574826 in words is "twenty-eight million, five hundred seventy-four thousand, eight hundred twenty-six".