2196916 has 6 divisors (see below), whose sum is σ = 3844610. Its totient is φ = 1098456.

The previous prime is 2196889. The next prime is 2196917. The reversal of 2196916 is 6196912.

It can be written as a sum of positive squares in only one way, i.e., 1313316 + 883600 = 1146^2 + 940^2 .

It is a super-2 number, since 2×2196916² = 9652879822112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274611 + ... + 274618.

2^2196916 is an apocalyptic number.

It is an amenable number.

2196916 is a deficient number, since it is larger than the sum of its proper divisors (1647694).

2196916 is a wasteful number, since it uses less digits than its factorization.

2196916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549233 (or 549231 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 2196916 is about 1482.1997166374. The cubic root of 2196916 is about 129.9983431742.

The spelling of 2196916 in words is "two million, one hundred ninety-six thousand, nine hundred sixteen".