28098122 has 16 divisors (see below), whose sum is σ = 45700200. Its totient is φ = 12879552.

The previous prime is 28098113. The next prime is 28098143. The reversal of 28098122 is 22189082.

It can be written as a sum of positive squares in 4 ways, for example, as 16801801 + 11296321 = 4099^2 + 3361^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248 + ... + 7500.

Almost surely, 2^28098122 is an apocalyptic number.

28098122 is a deficient number, since it is larger than the sum of its proper divisors (17602078).

28098122 is a wasteful number, since it uses less digits than its factorization.

28098122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 28098122 is about 5300.7661710360. The cubic root of 28098122 is about 304.0131933909.

The spelling of 28098122 in words is "twenty-eight million, ninety-eight thousand, one hundred twenty-two".