1166678 has 4 divisors (see below), whose sum is σ = 1750020. Its totient is φ = 583338.

The previous prime is 1166677. The next prime is 1166687. The reversal of 1166678 is 8766611.

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

It is a super-2 number, since 2×1166678² = 2722275111368, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166677) 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 as a sum of consecutive naturals, namely, 291668 + ... + 291671.

It is an arithmetic number, because the mean of its divisors is an integer number (437505).

2^1166678 is an apocalyptic number.

1166678 is a deficient number, since it is larger than the sum of its proper divisors (583342).

1166678 is an equidigital number, since it uses as much as digits as its factorization.

1166678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583341.

The product of its digits is 12096, while the sum is 35.

The square root of 1166678 is about 1080.1286960358. The cubic root of 1166678 is about 105.2730008427.

The spelling of 1166678 in words is "one million, one hundred sixty-six thousand, six hundred seventy-eight".