2196847837 has 2 divisors, whose sum is σ = 2196847838. Its totient is φ = 2196847836.

The previous prime is 2196847813. The next prime is 2196847853. The reversal of 2196847837 is 7387486912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1162196281 + 1034651556 = 34091^2 + 32166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2196847837 is a prime.

It is a super-2 number, since 2×2196847837² = 9652280837863157138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2196847867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098423918 + 1098423919.

It is an arithmetic number, because the mean of its divisors is an integer number (1098423919).

Almost surely, 2^2196847837 is an apocalyptic number.

It is an amenable number.

2196847837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196847837 is an equidigital number, since it uses as much as digits as its factorization.

2196847837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 2196847837 is about 46870.5433828113. The cubic root of 2196847837 is about 1299.9699868811.

The spelling of 2196847837 in words is "two billion, one hundred ninety-six million, eight hundred forty-seven thousand, eight hundred thirty-seven".