1189730487 has 8 divisors (see below), whose sum is σ = 1730517120. Its totient is φ = 721048760.

The previous prime is 1189730473. The next prime is 1189730489. The reversal of 1189730487 is 7840379811.

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 1189730487 - 2¹⁴ = 1189714103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189730489) 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, 18026187 + ... + 18026252.

It is an arithmetic number, because the mean of its divisors is an integer number (216314640).

Almost surely, 2^1189730487 is an apocalyptic number.

1189730487 is a deficient number, since it is larger than the sum of its proper divisors (540786633).

1189730487 is a wasteful number, since it uses less digits than its factorization.

1189730487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36052453.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 1189730487 is about 34492.4700043357. The cubic root of 1189730487 is about 1059.6184953779.

The spelling of 1189730487 in words is "one billion, one hundred eighty-nine million, seven hundred thirty thousand, four hundred eighty-seven".