28113936 has 40 divisors (see below), whose sum is σ = 72912000. Its totient is φ = 9334656.

The previous prime is 28113923. The next prime is 28113961. The reversal of 28113936 is 63931182.

It is a junction number, because it is equal to n+sod(n) for n = 28113897 and 28113906.

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, 13065 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (1822800).

Almost surely, 2^28113936 is an apocalyptic number.

It is an amenable number.

28113936 is an abundant number, since it is smaller than the sum of its proper divisors (44798064).

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

28113936 is a wasteful number, since it uses less digits than its factorization.

28113936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2297 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 28113936 is about 5302.2576323676. The cubic root of 28113936 is about 304.0702169289.

The spelling of 28113936 in words is "twenty-eight million, one hundred thirteen thousand, nine hundred thirty-six".