2196723 has 16 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 1305216.

The previous prime is 2196713. The next prime is 2196731. The reversal of 2196723 is 3276912.

2196723 = T₆₇ + T₆₈ + ... + T₂₃₇.

It is not a de Polignac number, because 2196723 - 2⁶ = 2196659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2196703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

2^2196723 is an apocalyptic number.

2196723 is a deficient number, since it is larger than the sum of its proper divisors (1069197).

2196723 is a wasteful number, since it uses less digits than its factorization.

2196723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its digits is 4536, while the sum is 30.

The square root of 2196723 is about 1482.1346092714. The cubic root of 2196723 is about 129.9945362595.

The spelling of 2196723 in words is "two million, one hundred ninety-six thousand, seven hundred twenty-three".