28469522 has 4 divisors (see below), whose sum is σ = 42704286. Its totient is φ = 14234760.

The previous prime is 28469513. The next prime is 28469527. The reversal of 28469522 is 22596482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16072081 + 12397441 = 4009^2 + 3521^2 .

It is not an unprimeable number, because it can be changed into a prime (28469527) by changing a digit.

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 as a sum of consecutive naturals, namely, 7117379 + ... + 7117382.

Almost surely, 2^28469522 is an apocalyptic number.

28469522 is a deficient number, since it is larger than the sum of its proper divisors (14234764).

28469522 is a wasteful number, since it uses less digits than its factorization.

28469522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14234763.

The product of its digits is 69120, while the sum is 38.

The square root of 28469522 is about 5335.6838362107. The cubic root of 28469522 is about 305.3468132316.

The spelling of 28469522 in words is "twenty-eight million, four hundred sixty-nine thousand, five hundred twenty-two".