1187386676 has 48 divisors (see below), whose sum is σ = 2486034432. Its totient is φ = 485503200.

The previous prime is 1187386667. The next prime is 1187386699. The reversal of 1187386676 is 6766837811.

It is a super-3 number, since 3×1187386676³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51995 + ... + 71261.

It is an arithmetic number, because the mean of its divisors is an integer number (51792384).

Almost surely, 2^1187386676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1187386676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243017216).

1187386676 is an abundant number, since it is smaller than the sum of its proper divisors (1298647756).

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

1187386676 is a wasteful number, since it uses less digits than its factorization.

1187386676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19380 (or 19378 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 1187386676 is about 34458.4775635837. The cubic root of 1187386676 is about 1058.9222093450.

The spelling of 1187386676 in words is "one billion, one hundred eighty-seven million, three hundred eighty-six thousand, six hundred seventy-six".