1187630 has 16 divisors (see below), whose sum is σ = 2158704. Its totient is φ = 470400.

The previous prime is 1187629. The next prime is 1187639. The reversal of 1187630 is 367811.

It is a self number, because there is not a number n which added to its sum of digits gives 1187630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (134919).

2^1187630 is an apocalyptic number.

1187630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1187630 is a deficient number, since it is larger than the sum of its proper divisors (971074).

1187630 is a wasteful number, since it uses less digits than its factorization.

1187630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1187630 is about 1089.7843823436. The cubic root of 1187630 is about 105.8994537255.

The spelling of 1187630 in words is "one million, one hundred eighty-seven thousand, six hundred thirty".