28095530 has 8 divisors (see below), whose sum is σ = 50571972. Its totient is φ = 11238208.

The previous prime is 28095523. The next prime is 28095533. The reversal of 28095530 is 3559082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28079401 + 16129 = 5299^2 + 127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28095533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404767 + ... + 1404786.

Almost surely, 2^28095530 is an apocalyptic number.

28095530 is a deficient number, since it is larger than the sum of its proper divisors (22476442).

28095530 is a wasteful number, since it uses less digits than its factorization.

28095530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809560.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 28095530 is about 5300.5216724394. The cubic root of 28095530 is about 304.0038448844.

The spelling of 28095530 in words is "twenty-eight million, ninety-five thousand, five hundred thirty".