28383876 has 36 divisors (see below), whose sum is σ = 71935500. Its totient is φ = 9436608.

The previous prime is 28383871. The next prime is 28383881. The reversal of 28383876 is 67838382.

It is an interprime number because it is at equal distance from previous prime (28383871) and next prime (28383881).

It can be written as a sum of positive squares in 2 ways, for example, as 16646400 + 11737476 = 4080^2 + 3426^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (28383871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17550 + ... + 19098.

Almost surely, 2^28383876 is an apocalyptic number.

It is an amenable number.

28383876 is an abundant number, since it is smaller than the sum of its proper divisors (43551624).

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

28383876 is a wasteful number, since it uses less digits than its factorization.

28383876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2063 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 28383876 is about 5327.6520156632. The cubic root of 28383876 is about 305.0403099997.

The spelling of 28383876 in words is "twenty-eight million, three hundred eighty-three thousand, eight hundred seventy-six".