2187716 has 12 divisors (see below), whose sum is σ = 3845520. Its totient is φ = 1089000.

The previous prime is 2187707. The next prime is 2187727. The reversal of 2187716 is 6177812.

It is a super-2 number, since 2×2187716² = 9572202593312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86 + ... + 2093.

It is an arithmetic number, because the mean of its divisors is an integer number (320460).

2^2187716 is an apocalyptic number.

It is an amenable number.

2187716 is a deficient number, since it is larger than the sum of its proper divisors (1657804).

2187716 is a wasteful number, since it uses less digits than its factorization.

2187716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434 (or 2432 counting only the distinct ones).

The product of its digits is 4704, while the sum is 32.

The square root of 2187716 is about 1479.0929653000. The cubic root of 2187716 is about 129.8166250865.

The spelling of 2187716 in words is "two million, one hundred eighty-seven thousand, seven hundred sixteen".