28167198 has 32 divisors (see below), whose sum is σ = 59927040. Its totient is φ = 8795520.

The previous prime is 28167187. The next prime is 28167199. The reversal of 28167198 is 89176182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28167199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27133 + ... + 28151.

It is an arithmetic number, because the mean of its divisors is an integer number (1872720).

Almost surely, 2^28167198 is an apocalyptic number.

28167198 is an abundant number, since it is smaller than the sum of its proper divisors (31759842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28167198 is a wasteful number, since it uses less digits than its factorization.

28167198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 48384, while the sum is 42.

The square root of 28167198 is about 5307.2778333153. The cubic root of 28167198 is about 304.2621166713.

The spelling of 28167198 in words is "twenty-eight million, one hundred sixty-seven thousand, one hundred ninety-eight".