2196819 has 6 divisors (see below), whose sum is σ = 3173196. Its totient is φ = 1464540.

The previous prime is 2196809. The next prime is 2196829. The reversal of 2196819 is 9186912.

It is an interprime number because it is at equal distance from previous prime (2196809) and next prime (2196829).

It is not a de Polignac number, because 2196819 - 2⁸ = 2196563 is a prime.

It is a super-2 number, since 2×2196819² = 9652027437522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2196809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122037 + ... + 122054.

It is an arithmetic number, because the mean of its divisors is an integer number (528866).

2^2196819 is an apocalyptic number.

2196819 is a deficient number, since it is larger than the sum of its proper divisors (976377).

2196819 is a wasteful number, since it uses less digits than its factorization.

2196819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244097 (or 244094 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 2196819 is about 1482.1669946399. The cubic root of 2196819 is about 129.9964298822.

The spelling of 2196819 in words is "two million, one hundred ninety-six thousand, eight hundred nineteen".