1178872 has 16 divisors (see below), whose sum is σ = 2233800. Its totient is φ = 583200.

The previous prime is 1178851. The next prime is 1178887. The reversal of 1178872 is 2788711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79 + ... + 1537.

2^1178872 is an apocalyptic number.

It is an amenable number.

1178872 is a deficient number, since it is larger than the sum of its proper divisors (1054928).

1178872 is a wasteful number, since it uses less digits than its factorization.

1178872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566 (or 1562 counting only the distinct ones).

The product of its digits is 6272, while the sum is 34.

The square root of 1178872 is about 1085.7587208952. The cubic root of 1178872 is about 105.6384979774.

The spelling of 1178872 in words is "one million, one hundred seventy-eight thousand, eight hundred seventy-two".