1263324847 has 2 divisors, whose sum is σ = 1263324848. Its totient is φ = 1263324846.

The previous prime is 1263324793. The next prime is 1263324857. The reversal of 1263324847 is 7484233621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1263324847 - 2⁷ = 1263324719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263324857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631662423 + 631662424.

It is an arithmetic number, because the mean of its divisors is an integer number (631662424).

Almost surely, 2^1263324847 is an apocalyptic number.

1263324847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263324847 is an equidigital number, since it uses as much as digits as its factorization.

1263324847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 1263324847 is about 35543.2813201032. The cubic root of 1263324847 is about 1081.0314925176.

The spelling of 1263324847 in words is "one billion, two hundred sixty-three million, three hundred twenty-four thousand, eight hundred forty-seven".