2112987 has 16 divisors (see below), whose sum is σ = 2976768. Its totient is φ = 1330560.

The previous prime is 2112973. The next prime is 2112989. The reversal of 2112987 is 7892112.

It is not a de Polignac number, because 2112987 - 2⁶ = 2112923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7662 + ... + 7932.

It is an arithmetic number, because the mean of its divisors is an integer number (186048).

2^2112987 is an apocalyptic number.

2112987 is a deficient number, since it is larger than the sum of its proper divisors (863781).

2112987 is a wasteful number, since it uses less digits than its factorization.

2112987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its digits is 2016, while the sum is 30.

The square root of 2112987 is about 1453.6117088136. The cubic root of 2112987 is about 128.3213564280.

The spelling of 2112987 in words is "two million, one hundred twelve thousand, nine hundred eighty-seven".