6722578 has 16 divisors (see below), whose sum is σ = 10704960. Its totient is φ = 3159376.

The previous prime is 6722563. The next prime is 6722581. The reversal of 6722578 is 8752276.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1476 + ... + 3952.

It is an arithmetic number, because the mean of its divisors is an integer number (669060).

Almost surely, 2^6722578 is an apocalyptic number.

6722578 is a deficient number, since it is larger than the sum of its proper divisors (3982382).

6722578 is a wasteful number, since it uses less digits than its factorization.

6722578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561.

The product of its digits is 47040, while the sum is 37.

The square root of 6722578 is about 2592.7934742281. The cubic root of 6722578 is about 188.7318875066.

The spelling of 6722578 in words is "six million, seven hundred twenty-two thousand, five hundred seventy-eight".