28051198 has 32 divisors (see below), whose sum is σ = 49766400. Its totient is φ = 11609664.

The previous prime is 28051193. The next prime is 28051211. The reversal of 28051198 is 89115082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28051193) 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, 58323 + ... + 58801.

It is an arithmetic number, because the mean of its divisors is an integer number (1555200).

Almost surely, 2^28051198 is an apocalyptic number.

28051198 is a deficient number, since it is larger than the sum of its proper divisors (21715202).

28051198 is a wasteful number, since it uses less digits than its factorization.

28051198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 28051198 is about 5296.3381689616. The cubic root of 28051198 is about 303.8438645935.

The spelling of 28051198 in words is "twenty-eight million, fifty-one thousand, one hundred ninety-eight".