7981203247 has 2 divisors, whose sum is σ = 7981203248. Its totient is φ = 7981203246.

The previous prime is 7981203199. The next prime is 7981203271. The reversal of 7981203247 is 7423021897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7981203247 - 2⁷ = 7981203119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7981203277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990601623 + 3990601624.

It is an arithmetic number, because the mean of its divisors is an integer number (3990601624).

Almost surely, 2^7981203247 is an apocalyptic number.

7981203247 is a deficient number, since it is larger than the sum of its proper divisors (1).

7981203247 is an equidigital number, since it uses as much as digits as its factorization.

7981203247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 7981203247 is about 89337.5802616122. The cubic root of 7981203247 is about 1998.4323755144.

The spelling of 7981203247 in words is "seven billion, nine hundred eighty-one million, two hundred three thousand, two hundred forty-seven".