6722858 has 4 divisors (see below), whose sum is σ = 10084290. Its totient is φ = 3361428.

The previous prime is 6722857. The next prime is 6722861. The reversal of 6722858 is 8582276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5870929 + 851929 = 2423^2 + 923^2 .

It is a d-powerful number, because it can be written as 6⁷ + 7⁶ + 2¹⁰ + 2²² + 8⁵ + 5² + 8⁷ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6722857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1680713 + ... + 1680716.

Almost surely, 2^6722858 is an apocalyptic number.

6722858 is a deficient number, since it is larger than the sum of its proper divisors (3361432).

6722858 is a wasteful number, since it uses less digits than its factorization.

6722858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361431.

The product of its digits is 53760, while the sum is 38.

The square root of 6722858 is about 2592.8474694822. The cubic root of 6722858 is about 188.7345077412.

The spelling of 6722858 in words is "six million, seven hundred twenty-two thousand, eight hundred fifty-eight".