28362722 has 4 divisors (see below), whose sum is σ = 42544086. Its totient is φ = 14181360.

The previous prime is 28362721. The next prime is 28362751. The reversal of 28362722 is 22726382.

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., 28185481 + 177241 = 5309^2 + 421^2 .

It is not an unprimeable number, because it can be changed into a prime (28362721) 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 as a sum of consecutive naturals, namely, 7090679 + ... + 7090682.

Almost surely, 2^28362722 is an apocalyptic number.

28362722 is a deficient number, since it is larger than the sum of its proper divisors (14181364).

28362722 is a wasteful number, since it uses less digits than its factorization.

28362722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14181363.

The product of its digits is 16128, while the sum is 32.

The square root of 28362722 is about 5325.6663432851. Note that the first 3 decimals coincide. The cubic root of 28362722 is about 304.9645107860.

The spelling of 28362722 in words is "twenty-eight million, three hundred sixty-two thousand, seven hundred twenty-two".