2196187393 has 4 divisors (see below), whose sum is σ = 2196373060. Its totient is φ = 2196001728.

The previous prime is 2196187373. The next prime is 2196187397. The reversal of 2196187393 is 3937816912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188430529 + 2007756864 = 13727^2 + 44808^2 .

It is a cyclic number.

It is not a de Polignac number, because 2196187393 - 2²⁹ = 1659316481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2196187397) 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, 73788 + ... + 99181.

It is an arithmetic number, because the mean of its divisors is an integer number (549093265).

Almost surely, 2^2196187393 is an apocalyptic number.

It is an amenable number.

2196187393 is a deficient number, since it is larger than the sum of its proper divisors (185667).

2196187393 is a wasteful number, since it uses less digits than its factorization.

2196187393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185666.

The product of its digits is 489888, while the sum is 49.

The square root of 2196187393 is about 46863.4974473737. The cubic root of 2196187393 is about 1299.8397027205.

The spelling of 2196187393 in words is "two billion, one hundred ninety-six million, one hundred eighty-seven thousand, three hundred ninety-three".