1166387 has 4 divisors (see below), whose sum is σ = 1235016. Its totient is φ = 1097760.

The previous prime is 1166383. The next prime is 1166393. The reversal of 1166387 is 7836611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1166387 - 2² = 1166383 is a prime.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1166383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34289 + ... + 34322.

It is an arithmetic number, because the mean of its divisors is an integer number (308754).

2^1166387 is an apocalyptic number.

1166387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1166387 is a deficient number, since it is larger than the sum of its proper divisors (68629).

1166387 is an equidigital number, since it uses as much as digits as its factorization.

1166387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68628.

The product of its digits is 6048, while the sum is 32.

The square root of 1166387 is about 1079.9939814647. The cubic root of 1166387 is about 105.2642475019.

The spelling of 1166387 in words is "one million, one hundred sixty-six thousand, three hundred eighty-seven".