1197388847 has 2 divisors, whose sum is σ = 1197388848. Its totient is φ = 1197388846.

The previous prime is 1197388837. The next prime is 1197388877. The reversal of 1197388847 is 7488837911.

It is a weak prime.

It is an emirp because it is prime and its reverse (7488837911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1197388847 - 2¹⁰ = 1197387823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1197388792 and 1197388801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1197388837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598694423 + 598694424.

It is an arithmetic number, because the mean of its divisors is an integer number (598694424).

Almost surely, 2^1197388847 is an apocalyptic number.

1197388847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197388847 is an equidigital number, since it uses as much as digits as its factorization.

1197388847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 56.

The square root of 1197388847 is about 34603.3068795455. The cubic root of 1197388847 is about 1061.8872416437.

The spelling of 1197388847 in words is "one billion, one hundred ninety-seven million, three hundred eighty-eight thousand, eight hundred forty-seven".