1187584902 has 80 divisors (see below), whose sum is σ = 3057702912. Its totient is φ = 337471920.

The previous prime is 1187584901. The next prime is 1187584903. The reversal of 1187584902 is 2094857811.

It is an interprime number because it is at equal distance from previous prime (1187584901) and next prime (1187584903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187584901) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 213853 + ... + 219335.

Almost surely, 2^1187584902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1187584902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528851456).

1187584902 is an abundant number, since it is smaller than the sum of its proper divisors (1870118010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1187584902 is a wasteful number, since it uses less digits than its factorization.

1187584902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5695 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 1187584902 is about 34461.3537458992. The cubic root of 1187584902 is about 1058.9811326478.

The spelling of 1187584902 in words is "one billion, one hundred eighty-seven million, five hundred eighty-four thousand, nine hundred two".