2487189 has 4 divisors (see below), whose sum is σ = 3316256. Its totient is φ = 1658124.

The previous prime is 2487167. The next prime is 2487203. The reversal of 2487189 is 9817842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2487189 - 2⁷ = 2487061 is a prime.

It is a super-2 number, since 2×2487189² = 12372218243442, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2487139) 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, 414529 + ... + 414534.

It is an arithmetic number, because the mean of its divisors is an integer number (829064).

2^2487189 is an apocalyptic number.

It is an amenable number.

2487189 is a deficient number, since it is larger than the sum of its proper divisors (829067).

2487189 is an equidigital number, since it uses as much as digits as its factorization.

2487189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829066.

The product of its digits is 32256, while the sum is 39.

The square root of 2487189 is about 1577.0824328487. The cubic root of 2487189 is about 135.4886543425.

The spelling of 2487189 in words is "two million, four hundred eighty-seven thousand, one hundred eighty-nine".