1194740689 has 4 divisors (see below), whose sum is σ = 1204148224. Its totient is φ = 1185333156.

The previous prime is 1194740683. The next prime is 1194740699. The reversal of 1194740689 is 9860474911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1194740689 - 2⁹ = 1194740177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1194740683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4703577 + ... + 4703830.

It is an arithmetic number, because the mean of its divisors is an integer number (301037056).

Almost surely, 2^1194740689 is an apocalyptic number.

It is an amenable number.

1194740689 is a deficient number, since it is larger than the sum of its proper divisors (9407535).

1194740689 is an equidigital number, since it uses as much as digits as its factorization.

1194740689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407534.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1194740689 is about 34565.0211774852. The cubic root of 1194740689 is about 1061.1038367646.

The spelling of 1194740689 in words is "one billion, one hundred ninety-four million, seven hundred forty thousand, six hundred eighty-nine".