1189704849 has 8 divisors (see below), whose sum is σ = 1597852320. Its totient is φ = 787346976.

The previous prime is 1189704847. The next prime is 1189704881. The reversal of 1189704849 is 9484079811.

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

It is not a de Polignac number, because 1189704849 - 2¹ = 1189704847 is a prime.

It is a super-2 number, since 2×1189704849² = 2830795255468225602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1189704847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446919 + ... + 1447740.

It is an arithmetic number, because the mean of its divisors is an integer number (199731540).

Almost surely, 2^1189704849 is an apocalyptic number.

It is an amenable number.

1189704849 is a deficient number, since it is larger than the sum of its proper divisors (408147471).

1189704849 is a wasteful number, since it uses less digits than its factorization.

1189704849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894799.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1189704849 is about 34492.0983560003. The cubic root of 1189704849 is about 1059.6108839358.

The spelling of 1189704849 in words is "one billion, one hundred eighty-nine million, seven hundred four thousand, eight hundred forty-nine".