2187493 has 8 divisors (see below), whose sum is σ = 2727360. Its totient is φ = 1704480.

The previous prime is 2187491. The next prime is 2187511. The reversal of 2187493 is 3947812.

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

It is a cyclic number.

It is not a de Polignac number, because 2187493 - 2¹ = 2187491 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 (2187491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14128 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (340920).

2^2187493 is an apocalyptic number.

It is an amenable number.

2187493 is a deficient number, since it is larger than the sum of its proper divisors (539867).

2187493 is a wasteful number, since it uses less digits than its factorization.

2187493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28427.

The product of its digits is 12096, while the sum is 34.

The square root of 2187493 is about 1479.0175793411. The cubic root of 2187493 is about 129.8122140796.

The spelling of 2187493 in words is "two million, one hundred eighty-seven thousand, four hundred ninety-three".