7961000447 has 2 divisors, whose sum is σ = 7961000448. Its totient is φ = 7961000446.

The previous prime is 7961000423. The next prime is 7961000459. The reversal of 7961000447 is 7440001697.

7961000447 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7961000447 - 2²⁶ = 7893891583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7961000447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7961000497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3980500223 + 3980500224.

It is an arithmetic number, because the mean of its divisors is an integer number (3980500224).

Almost surely, 2^7961000447 is an apocalyptic number.

7961000447 is a deficient number, since it is larger than the sum of its proper divisors (1).

7961000447 is an equidigital number, since it uses as much as digits as its factorization.

7961000447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 7961000447 is about 89224.4386196966. The cubic root of 7961000447 is about 1996.7447417715.

The spelling of 7961000447 in words is "seven billion, nine hundred sixty-one million, four hundred forty-seven", and thus it is an aban number.