2196993 has 4 divisors (see below), whose sum is σ = 2929328. Its totient is φ = 1464660.

The previous prime is 2196979. The next prime is 2197021. The reversal of 2196993 is 3996912.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2196993 - 2⁴ = 2196977 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2191993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366163 + ... + 366168.

It is an arithmetic number, because the mean of its divisors is an integer number (732332).

2^2196993 is an apocalyptic number.

It is an amenable number.

2196993 is a deficient number, since it is larger than the sum of its proper divisors (732335).

2196993 is an equidigital number, since it uses as much as digits as its factorization.

2196993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732334.

The product of its digits is 26244, while the sum is 39.

The square root of 2196993 is about 1482.2256913169. The cubic root of 2196993 is about 129.9998619328. Note that the first 3 decimals are identical.

The spelling of 2196993 in words is "two million, one hundred ninety-six thousand, nine hundred ninety-three".