1197647263 has 8 divisors (see below), whose sum is σ = 1281172032. Its totient is φ = 1115575296.

The previous prime is 1197647219. The next prime is 1197647267. The reversal of 1197647263 is 3627467911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1197647263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197647267) 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 in 7 ways as a sum of consecutive naturals, for example, 361495 + ... + 364792.

It is an arithmetic number, because the mean of its divisors is an integer number (160146504).

Almost surely, 2^1197647263 is an apocalyptic number.

1197647263 is a deficient number, since it is larger than the sum of its proper divisors (83524769).

1197647263 is an equidigital number, since it uses as much as digits as its factorization.

1197647263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726401.

The product of its digits is 381024, while the sum is 46.

The square root of 1197647263 is about 34607.0406564907. The cubic root of 1197647263 is about 1061.9636269984.

The spelling of 1197647263 in words is "one billion, one hundred ninety-seven million, six hundred forty-seven thousand, two hundred sixty-three".