2196491 has 8 divisors (see below), whose sum is σ = 2409264. Its totient is φ = 1985920.

The previous prime is 2196487. The next prime is 2196499. The reversal of 2196491 is 1946912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2196491 - 2² = 2196487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2196499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135 + ... + 2991.

It is an arithmetic number, because the mean of its divisors is an integer number (301158).

2^2196491 is an apocalyptic number.

2196491 is a deficient number, since it is larger than the sum of its proper divisors (212773).

2196491 is a wasteful number, since it uses less digits than its factorization.

2196491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101.

The product of its digits is 3888, while the sum is 32.

The square root of 2196491 is about 1482.0563417090. The cubic root of 2196491 is about 129.9899597769.

The spelling of 2196491 in words is "two million, one hundred ninety-six thousand, four hundred ninety-one".