28617522 has 16 divisors (see below), whose sum is σ = 57826272. Its totient is φ = 9440640.

The previous prime is 28617521. The next prime is 28617527. The reversal of 28617522 is 22571682.

It is not an unprimeable number, because it can be changed into a prime (28617521) by changing a digit.

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, 24004 + ... + 25167.

It is an arithmetic number, because the mean of its divisors is an integer number (3614142).

Almost surely, 2^28617522 is an apocalyptic number.

28617522 is an abundant number, since it is smaller than the sum of its proper divisors (29208750).

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

28617522 is a wasteful number, since it uses less digits than its factorization.

28617522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49273.

The product of its digits is 13440, while the sum is 33.

The square root of 28617522 is about 5349.5347461251. The cubic root of 28617522 is about 305.8750183776.

The spelling of 28617522 in words is "twenty-eight million, six hundred seventeen thousand, five hundred twenty-two".