873666939 has 8 divisors (see below), whose sum is σ = 1165058560. Its totient is φ = 582359976.

The previous prime is 873666929. The next prime is 873666943. The reversal of 873666939 is 939666378.

873666939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 873666939 - 2⁹ = 873666427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873666929) 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, 9102 + ... + 42780.

It is an arithmetic number, because the mean of its divisors is an integer number (145632320).

Almost surely, 2^873666939 is an apocalyptic number.

873666939 is a deficient number, since it is larger than the sum of its proper divisors (291391621).

873666939 is a wasteful number, since it uses less digits than its factorization.

873666939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42329.

The product of its digits is 8817984, while the sum is 57.

The square root of 873666939 is about 29557.8574832480. The cubic root of 873666939 is about 955.9796199474.

The spelling of 873666939 in words is "eight hundred seventy-three million, six hundred sixty-six thousand, nine hundred thirty-nine".