2197984 has 12 divisors (see below), whose sum is σ = 4327344. Its totient is φ = 1098976.

The previous prime is 2197973. The next prime is 2198003. The reversal of 2197984 is 4897912.

It is a super-2 number, since 2×2197984² = 9662267328512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34312 + ... + 34375.

It is an arithmetic number, because the mean of its divisors is an integer number (360612).

2^2197984 is an apocalyptic number.

It is an amenable number.

2197984 is a deficient number, since it is larger than the sum of its proper divisors (2129360).

2197984 is an equidigital number, since it uses as much as digits as its factorization.

2197984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68697 (or 68689 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 2197984 is about 1482.5599481977. The cubic root of 2197984 is about 130.0194053872.

The spelling of 2197984 in words is "two million, one hundred ninety-seven thousand, nine hundred eighty-four".