873218983 has 16 divisors (see below), whose sum is σ = 1075576320. Its totient is φ = 690355296.

The previous prime is 873218977. The next prime is 873218987. The reversal of 873218983 is 389812378.

It is a cyclic number.

It is not a de Polignac number, because 873218983 - 2²¹ = 871121831 is a prime.

It is a super-2 number, since 2×873218983² = 1525022784543108578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873218987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 144366 + ... + 150292.

It is an arithmetic number, because the mean of its divisors is an integer number (67223520).

Almost surely, 2^873218983 is an apocalyptic number.

873218983 is a deficient number, since it is larger than the sum of its proper divisors (202357337).

873218983 is a wasteful number, since it uses less digits than its factorization.

873218983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566.

The product of its digits is 580608, while the sum is 49.

The square root of 873218983 is about 29550.2788988531. The cubic root of 873218983 is about 955.8162052645.

The spelling of 873218983 in words is "eight hundred seventy-three million, two hundred eighteen thousand, nine hundred eighty-three".