3218873 has 8 divisors (see below), whose sum is σ = 3838848. Its totient is φ = 2638944.

The previous prime is 3218861. The next prime is 3218893. The reversal of 3218873 is 3788123.

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

It is not a de Polignac number, because 3218873 - 2¹⁰ = 3217849 is a prime.

It is a super-2 number, since 2×3218873² = 20722286780258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3218843) 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, 9836 + ... + 10157.

It is an arithmetic number, because the mean of its divisors is an integer number (479856).

Almost surely, 2^3218873 is an apocalyptic number.

It is an amenable number.

3218873 is a deficient number, since it is larger than the sum of its proper divisors (619975).

3218873 is a wasteful number, since it uses less digits than its factorization.

3218873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20023.

The product of its digits is 8064, while the sum is 32.

The square root of 3218873 is about 1794.1217907377. The cubic root of 3218873 is about 147.6503952934.

The spelling of 3218873 in words is "three million, two hundred eighteen thousand, eight hundred seventy-three".