1187967 has 8 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 719960.

The previous prime is 1187947. The next prime is 1187981. The reversal of 1187967 is 7697811.

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 1187967 - 2⁷ = 1187839 is a prime.

It is a super-2 number, since 2×1187967² = 2822531186178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187947) 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, 17967 + ... + 18032.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

2^1187967 is an apocalyptic number.

1187967 is a deficient number, since it is larger than the sum of its proper divisors (540033).

1187967 is a wasteful number, since it uses less digits than its factorization.

1187967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36013.

The product of its digits is 21168, while the sum is 39.

The square root of 1187967 is about 1089.9389891182. The cubic root of 1187967 is about 105.9094693984.

It can be divided in two parts, 11 and 87967, that added together give a palindrome (87978).

The spelling of 1187967 in words is "one million, one hundred eighty-seven thousand, nine hundred sixty-seven".