6726820 has 24 divisors (see below), whose sum is σ = 14212800. Its totient is φ = 2674272.

The previous prime is 6726799. The next prime is 6726821. The reversal of 6726820 is 286276.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6726821) 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, 2641 + ... + 4519.

It is an arithmetic number, because the mean of its divisors is an integer number (592200).

Almost surely, 2^6726820 is an apocalyptic number.

It is an amenable number.

6726820 is an abundant number, since it is smaller than the sum of its proper divisors (7485980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6726820 is a wasteful number, since it uses less digits than its factorization.

6726820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 6726820 is about 2593.6113818381. The cubic root of 6726820 is about 188.7715762654.

The spelling of 6726820 in words is "six million, seven hundred twenty-six thousand, eight hundred twenty".