873478909 has 8 divisors (see below), whose sum is σ = 922625792. Its totient is φ = 825642720.

The previous prime is 873478901. The next prime is 873478913. The reversal of 873478909 is 909874378.

873478909 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 a cyclic number.

It is not a de Polignac number, because 873478909 - 2³ = 873478901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 873478909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873478901) 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, 326304 + ... + 328969.

It is an arithmetic number, because the mean of its divisors is an integer number (115328224).

Almost surely, 2^873478909 is an apocalyptic number.

It is an amenable number.

873478909 is a deficient number, since it is larger than the sum of its proper divisors (49146883).

873478909 is a wasteful number, since it uses less digits than its factorization.

873478909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655347.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 873478909 is about 29554.6766011743. The cubic root of 873478909 is about 955.9110332672.

The spelling of 873478909 in words is "eight hundred seventy-three million, four hundred seventy-eight thousand, nine hundred nine".