28522316 has 6 divisors (see below), whose sum is σ = 49914060. Its totient is φ = 14261156.

The previous prime is 28522313. The next prime is 28522349. The reversal of 28522316 is 61322582.

It is not an unprimeable number, because it can be changed into a prime (28522313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565286 + ... + 3565293.

It is an arithmetic number, because the mean of its divisors is an integer number (8319010).

Almost surely, 2^28522316 is an apocalyptic number.

It is an amenable number.

28522316 is a deficient number, since it is larger than the sum of its proper divisors (21391744).

28522316 is a wasteful number, since it uses less digits than its factorization.

28522316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130583 (or 7130581 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 28522316 is about 5340.6288019296. The cubic root of 28522316 is about 305.5354421483.

Adding to 28522316 its reverse (61322582), we get a palindrome (89844898).

The spelling of 28522316 in words is "twenty-eight million, five hundred twenty-two thousand, three hundred sixteen".