28195502 has 4 divisors (see below), whose sum is σ = 42293256. Its totient is φ = 14097750.

The previous prime is 28195477. The next prime is 28195507. The reversal of 28195502 is 20559182.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28195507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7048874 + ... + 7048877.

It is an arithmetic number, because the mean of its divisors is an integer number (10573314).

Almost surely, 2^28195502 is an apocalyptic number.

28195502 is a deficient number, since it is larger than the sum of its proper divisors (14097754).

28195502 is a wasteful number, since it uses less digits than its factorization.

28195502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14097753.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 28195502 is about 5309.9436908502. The cubic root of 28195502 is about 304.3639958383.

The spelling of 28195502 in words is "twenty-eight million, one hundred ninety-five thousand, five hundred two".