28087048 has 32 divisors (see below), whose sum is σ = 59952960. Its totient is φ = 12210880.

The previous prime is 28087021. The next prime is 28087049. The reversal of 28087048 is 84078082.

It is a junction number, because it is equal to n+sod(n) for n = 28086998 and 28087016.

It is not an unprimeable number, because it can be changed into a prime (28087049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4915 + ... + 8962.

It is an arithmetic number, because the mean of its divisors is an integer number (1873530).

Almost surely, 2^28087048 is an apocalyptic number.

It is an amenable number.

28087048 is an abundant number, since it is smaller than the sum of its proper divisors (31865912).

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

28087048 is a wasteful number, since it uses less digits than its factorization.

28087048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13917 (or 13913 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 28087048 is about 5299.7215021169. The cubic root of 28087048 is about 303.9732490311.

The spelling of 28087048 in words is "twenty-eight million, eighty-seven thousand, forty-eight".