28028195 has 8 divisors (see below), whose sum is σ = 36221136. Its totient is φ = 20697696.

The previous prime is 28028183. The next prime is 28028197. The reversal of 28028195 is 59182082.

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

It is a cyclic number.

It is not a de Polignac number, because 28028195 - 2¹⁴ = 28011811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28028197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215537 + ... + 215666.

It is an arithmetic number, because the mean of its divisors is an integer number (4527642).

Almost surely, 2^28028195 is an apocalyptic number.

28028195 is a deficient number, since it is larger than the sum of its proper divisors (8192941).

28028195 is a wasteful number, since it uses less digits than its factorization.

28028195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431221.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 28028195 is about 5294.1661288630. The cubic root of 28028195 is about 303.7607875501.

The spelling of 28028195 in words is "twenty-eight million, twenty-eight thousand, one hundred ninety-five".