2193297853 has 4 divisors (see below), whose sum is σ = 2193953788. Its totient is φ = 2192641920.

The previous prime is 2193297767. The next prime is 2193297901. The reversal of 2193297853 is 3587923912.

2193297853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1456338244 + 736959609 = 38162^2 + 27147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2193297853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2193297797 and 2193297806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193291853) 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, 322926 + ... + 329647.

It is an arithmetic number, because the mean of its divisors is an integer number (548488447).

Almost surely, 2^2193297853 is an apocalyptic number.

It is an amenable number.

2193297853 is a deficient number, since it is larger than the sum of its proper divisors (655935).

2193297853 is an equidigital number, since it uses as much as digits as its factorization.

2193297853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655934.

The product of its digits is 816480, while the sum is 49.

The square root of 2193297853 is about 46832.6579749644. The cubic root of 2193297853 is about 1299.2693829517.

The spelling of 2193297853 in words is "two billion, one hundred ninety-three million, two hundred ninety-seven thousand, eight hundred fifty-three".