28536194 has 4 divisors (see below), whose sum is σ = 42804294. Its totient is φ = 14268096.

The previous prime is 28536187. The next prime is 28536197. The reversal of 28536194 is 49163582.

It is a happy number.

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., 27510025 + 1026169 = 5245^2 + 1013^2 .

It is not an unprimeable number, because it can be changed into a prime (28536197) 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, 7134047 + ... + 7134050.

Almost surely, 2^28536194 is an apocalyptic number.

28536194 is a deficient number, since it is larger than the sum of its proper divisors (14268100).

28536194 is a wasteful number, since it uses less digits than its factorization.

28536194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14268099.

The product of its digits is 51840, while the sum is 38.

The square root of 28536194 is about 5341.9279291282. The cubic root of 28536194 is about 305.5849885379.

The spelling of 28536194 in words is "twenty-eight million, five hundred thirty-six thousand, one hundred ninety-four".