6655973 has 4 divisors (see below), whose sum is σ = 6661260. Its totient is φ = 6650688.

The previous prime is 6655951. The next prime is 6655997. The reversal of 6655973 is 3795566.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3621409 + 3034564 = 1903^2 + 1742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6655973 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 6655973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461 + ... + 3677.

It is an arithmetic number, because the mean of its divisors is an integer number (1665315).

Almost surely, 2^6655973 is an apocalyptic number.

It is an amenable number.

6655973 is a deficient number, since it is larger than the sum of its proper divisors (5287).

6655973 is a wasteful number, since it uses less digits than its factorization.

6655973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286.

The product of its digits is 170100, while the sum is 41.

The square root of 6655973 is about 2579.9172467349. The cubic root of 6655973 is about 188.1065206662.

The spelling of 6655973 in words is "six million, six hundred fifty-five thousand, nine hundred seventy-three".