2196523697 has 2 divisors, whose sum is σ = 2196523698. Its totient is φ = 2196523696.

The previous prime is 2196523691. The next prime is 2196523717. The reversal of 2196523697 is 7963256912.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1593526561 + 602997136 = 39919^2 + 24556^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196523697 - 2¹⁰ = 2196522673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2196523691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098261848 + 1098261849.

It is an arithmetic number, because the mean of its divisors is an integer number (1098261849).

Almost surely, 2^2196523697 is an apocalyptic number.

It is an amenable number.

2196523697 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196523697 is an equidigital number, since it uses as much as digits as its factorization.

2196523697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 50.

The square root of 2196523697 is about 46867.0854331694. The cubic root of 2196523697 is about 1299.9060478453.

The spelling of 2196523697 in words is "two billion, one hundred ninety-six million, five hundred twenty-three thousand, six hundred ninety-seven".