2128087 has 8 divisors (see below), whose sum is σ = 2303504. Its totient is φ = 1954368.

The previous prime is 2128067. The next prime is 2128099. The reversal of 2128087 is 7808212.

2128087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2128087 - 2⁷ = 2127959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3808 + ... + 4330.

It is an arithmetic number, because the mean of its divisors is an integer number (287938).

2^2128087 is an apocalyptic number.

2128087 is a deficient number, since it is larger than the sum of its proper divisors (175417).

2128087 is a wasteful number, since it uses less digits than its factorization.

2128087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2128087 is about 1458.7964217121. The cubic root of 2128087 is about 128.6263046759.

The spelling of 2128087 in words is "two million, one hundred twenty-eight thousand, eighty-seven".