28087154 has 8 divisors (see below), whose sum is σ = 42604380. Its totient is φ = 13885696.

The previous prime is 28087141. The next prime is 28087159. The reversal of 28087154 is 45178082.

It can be written as a sum of positive squares in 2 ways, for example, as 27321529 + 765625 = 5227^2 + 875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28087159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78719 + ... + 79074.

Almost surely, 2^28087154 is an apocalyptic number.

28087154 is a deficient number, since it is larger than the sum of its proper divisors (14517226).

28087154 is a wasteful number, since it uses less digits than its factorization.

28087154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157884.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 28087154 is about 5299.7315026329. The cubic root of 28087154 is about 303.9736314271.

The spelling of 28087154 in words is "twenty-eight million, eighty-seven thousand, one hundred fifty-four".