1147792447 has 2 divisors, whose sum is σ = 1147792448. Its totient is φ = 1147792446.

The previous prime is 1147792441. The next prime is 1147792463. The reversal of 1147792447 is 7442977411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147792447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1147792397 and 1147792406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147792441) 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, 573896223 + 573896224.

It is an arithmetic number, because the mean of its divisors is an integer number (573896224).

Almost surely, 2^1147792447 is an apocalyptic number.

1147792447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147792447 is an equidigital number, since it uses as much as digits as its factorization.

1147792447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 46.

The square root of 1147792447 is about 33879.0856871906. The cubic root of 1147792447 is about 1047.0187381838.

The spelling of 1147792447 in words is "one billion, one hundred forty-seven million, seven hundred ninety-two thousand, four hundred forty-seven".