2231644847 has 2 divisors, whose sum is σ = 2231644848. Its totient is φ = 2231644846.

The previous prime is 2231644841. The next prime is 2231644853. The reversal of 2231644847 is 7484461322.

It is a balanced prime because it is at equal distance from previous prime (2231644841) and next prime (2231644853).

It is a cyclic number.

It is not a de Polignac number, because 2231644847 - 2⁶ = 2231644783 is a prime.

It is a super-3 number, since 3×2231644847³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231644841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115822423 + 1115822424.

It is an arithmetic number, because the mean of its divisors is an integer number (1115822424).

Almost surely, 2^2231644847 is an apocalyptic number.

2231644847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231644847 is an equidigital number, since it uses as much as digits as its factorization.

2231644847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 41.

The square root of 2231644847 is about 47240.2883881968. The cubic root of 2231644847 is about 1306.7976960685.

The spelling of 2231644847 in words is "two billion, two hundred thirty-one million, six hundred forty-four thousand, eight hundred forty-seven".