28164196 has 6 divisors (see below), whose sum is σ = 49287350. Its totient is φ = 14082096.

The previous prime is 28164119. The next prime is 28164197. The reversal of 28164196 is 69146182.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19927296 + 8236900 = 4464^2 + 2870^2 .

It is not an unprimeable number, because it can be changed into a prime (28164197) 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, 3520521 + ... + 3520528.

Almost surely, 2^28164196 is an apocalyptic number.

It is an amenable number.

28164196 is a deficient number, since it is larger than the sum of its proper divisors (21123154).

28164196 is a wasteful number, since it uses less digits than its factorization.

28164196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041053 (or 7041051 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 28164196 is about 5306.9950065927. The cubic root of 28164196 is about 304.2513070844.

The spelling of 28164196 in words is "twenty-eight million, one hundred sixty-four thousand, one hundred ninety-six".