28798198 has 16 divisors (see below), whose sum is σ = 50749776. Its totient is φ = 12083040.

The previous prime is 28798183. The next prime is 28798199. The reversal of 28798198 is 89189782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28798199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50061 + ... + 50632.

It is an arithmetic number, because the mean of its divisors is an integer number (3171861).

Almost surely, 2^28798198 is an apocalyptic number.

28798198 is a deficient number, since it is larger than the sum of its proper divisors (21951578).

28798198 is a wasteful number, since it uses less digits than its factorization.

28798198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100719.

The product of its digits is 580608, while the sum is 52.

The square root of 28798198 is about 5366.3952519359. The cubic root of 28798198 is about 306.5173798167.

The spelling of 28798198 in words is "twenty-eight million, seven hundred ninety-eight thousand, one hundred ninety-eight".