28087082 has 4 divisors (see below), whose sum is σ = 42130626. Its totient is φ = 14043540.

The previous prime is 28087063. The next prime is 28087099. The reversal of 28087082 is 28078082.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14830201 + 13256881 = 3851^2 + 3641^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7021769 + ... + 7021772.

Almost surely, 2^28087082 is an apocalyptic number.

28087082 is a deficient number, since it is larger than the sum of its proper divisors (14043544).

28087082 is a wasteful number, since it uses less digits than its factorization.

28087082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14043543.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 28087082 is about 5299.7247098316. The cubic root of 28087082 is about 303.9733716865.

The spelling of 28087082 in words is "twenty-eight million, eighty-seven thousand, eighty-two".