2642187 has 4 divisors (see below), whose sum is σ = 3522920. Its totient is φ = 1761456.

The previous prime is 2642179. The next prime is 2642201. The reversal of 2642187 is 7812462.

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

It is not a de Polignac number, because 2642187 - 2³ = 2642179 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440362 + ... + 440367.

It is an arithmetic number, because the mean of its divisors is an integer number (880730).

2^2642187 is an apocalyptic number.

2642187 is a deficient number, since it is larger than the sum of its proper divisors (880733).

2642187 is an equidigital number, since it uses as much as digits as its factorization.

2642187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880732.

The product of its digits is 5376, while the sum is 30.

The square root of 2642187 is about 1625.4805443314. The cubic root of 2642187 is about 138.2466184493.

The spelling of 2642187 in words is "two million, six hundred forty-two thousand, one hundred eighty-seven".