1197709379 has 2 divisors, whose sum is σ = 1197709380. Its totient is φ = 1197709378.

The previous prime is 1197709363. The next prime is 1197709411. The reversal of 1197709379 is 9739077911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1197709379 - 2⁴ = 1197709363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1197709379.

It is not a weakly prime, because it can be changed into another prime (1197709679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598854689 + 598854690.

It is an arithmetic number, because the mean of its divisors is an integer number (598854690).

Almost surely, 2^1197709379 is an apocalyptic number.

1197709379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197709379 is an equidigital number, since it uses as much as digits as its factorization.

1197709379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750141, while the sum is 53.

The square root of 1197709379 is about 34607.9380922932. The cubic root of 1197709379 is about 1061.9819862694.

The spelling of 1197709379 in words is "one billion, one hundred ninety-seven million, seven hundred nine thousand, three hundred seventy-nine".