1189674643 has 8 divisors (see below), whose sum is σ = 1229675760. Its totient is φ = 1150334880.

The previous prime is 1189674611. The next prime is 1189674719. The reversal of 1189674643 is 3464769811.

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

It is a cyclic number.

It is not a de Polignac number, because 1189674643 - 2⁵ = 1189674611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1189672643) 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, 161680 + ... + 168877.

It is an arithmetic number, because the mean of its divisors is an integer number (153709470).

Almost surely, 2^1189674643 is an apocalyptic number.

1189674643 is a deficient number, since it is larger than the sum of its proper divisors (40001117).

1189674643 is an equidigital number, since it uses as much as digits as its factorization.

1189674643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330677.

The product of its digits is 870912, while the sum is 49.

The square root of 1189674643 is about 34491.6604848186. The cubic root of 1189674643 is about 1059.6019161998.

The spelling of 1189674643 in words is "one billion, one hundred eighty-nine million, six hundred seventy-four thousand, six hundred forty-three".