1196869787 has 2 divisors, whose sum is σ = 1196869788. Its totient is φ = 1196869786.

The previous prime is 1196869777. The next prime is 1196869789. The reversal of 1196869787 is 7879686911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1196869787 - 2¹⁰ = 1196868763 is a prime.

Together with 1196869789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1196869789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598434893 + 598434894.

It is an arithmetic number, because the mean of its divisors is an integer number (598434894).

Almost surely, 2^1196869787 is an apocalyptic number.

1196869787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1196869787 is an equidigital number, since it uses as much as digits as its factorization.

1196869787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 62.

The square root of 1196869787 is about 34595.8059163246. The cubic root of 1196869787 is about 1061.7337791443.

The spelling of 1196869787 in words is "one billion, one hundred ninety-six million, eight hundred sixty-nine thousand, seven hundred eighty-seven".