6722651 has 6 divisors (see below), whose sum is σ = 7279740. Its totient is φ = 6205368.

The previous prime is 6722623. The next prime is 6722657. The reversal of 6722651 is 1562276.

It is not a de Polignac number, because 6722651 - 2⁶ = 6722587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6722657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19721 + ... + 20058.

It is an arithmetic number, because the mean of its divisors is an integer number (1213290).

Almost surely, 2^6722651 is an apocalyptic number.

6722651 is a deficient number, since it is larger than the sum of its proper divisors (557089).

6722651 is a wasteful number, since it uses less digits than its factorization.

6722651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39805 (or 39792 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 6722651 is about 2592.8075516706. The cubic root of 6722651 is about 188.7325706462.

The spelling of 6722651 in words is "six million, seven hundred twenty-two thousand, six hundred fifty-one".