28361700 has 54 divisors (see below), whose sum is σ = 88900994. Its totient is φ = 7562880.

The previous prime is 28361693. The next prime is 28361717. The reversal of 28361700 is 716382.

It can be written as a sum of positive squares in 3 ways, for example, as 419904 + 27941796 = 648^2 + 5286^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14857 + ... + 16656.

Almost surely, 2^28361700 is an apocalyptic number.

28361700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28361700 is an abundant number, since it is smaller than the sum of its proper divisors (60539294).

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

28361700 is a wasteful number, since it uses less digits than its factorization.

28361700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31533 (or 31523 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28361700 is about 5325.5703919862. The cubic root of 28361700 is about 304.9608477917.

The spelling of 28361700 in words is "twenty-eight million, three hundred sixty-one thousand, seven hundred".