28100798 has 24 divisors (see below), whose sum is σ = 46698960. Its totient is φ = 12672000.

The previous prime is 28100789. The next prime is 28100833. The reversal of 28100798 is 89700182.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36158 + ... + 36926.

It is an arithmetic number, because the mean of its divisors is an integer number (1945790).

Almost surely, 2^28100798 is an apocalyptic number.

28100798 is a deficient number, since it is larger than the sum of its proper divisors (18598162).

28100798 is a wasteful number, since it uses less digits than its factorization.

28100798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 28100798 is about 5301.0185813672. The cubic root of 28100798 is about 304.0228442551.

The spelling of 28100798 in words is "twenty-eight million, one hundred thousand, seven hundred ninety-eight".