6720801 has 4 divisors (see below), whose sum is σ = 8961072. Its totient is φ = 4480532.

The previous prime is 6720773. The next prime is 6720811. The reversal of 6720801 is 1080276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6720801 - 2⁷ = 6720673 is a prime.

It is a D-number.

6720801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6720811) 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, 1120131 + ... + 1120136.

It is an arithmetic number, because the mean of its divisors is an integer number (2240268).

Almost surely, 2^6720801 is an apocalyptic number.

It is an amenable number.

6720801 is a deficient number, since it is larger than the sum of its proper divisors (2240271).

6720801 is a wasteful number, since it uses less digits than its factorization.

6720801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240270.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 6720801 is about 2592.4507709887. The cubic root of 6720801 is about 188.7152566784.

The spelling of 6720801 in words is "six million, seven hundred twenty thousand, eight hundred one".