1187000 has 32 divisors (see below), whose sum is σ = 2779920. Its totient is φ = 474400.

The previous prime is 1186981. The next prime is 1187003. The reversal of 1187000 is 7811.

It is a self number, because there is not a number n which added to its sum of digits gives 1187000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187003) 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, 407 + ... + 1593.

2^1187000 is an apocalyptic number.

1187000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1187000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389960).

1187000 is an abundant number, since it is smaller than the sum of its proper divisors (1592920).

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

1187000 is a wasteful number, since it uses less digits than its factorization.

1187000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1187000 is about 1089.4952959972. The cubic root of 1187000 is about 105.8807249810.

The spelling of 1187000 in words is "one million, one hundred eighty-seven thousand".