6720994 has 8 divisors (see below), whose sum is σ = 11521728. Its totient is φ = 2880420.

The previous prime is 6720947. The next prime is 6721009. The reversal of 6720994 is 4990276.

6720994 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

6720994 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240022 + ... + 240049.

It is an arithmetic number, because the mean of its divisors is an integer number (1440216).

Almost surely, 2^6720994 is an apocalyptic number.

6720994 is a deficient number, since it is larger than the sum of its proper divisors (4800734).

6720994 is a wasteful number, since it uses less digits than its factorization.

6720994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480080.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 6720994 is about 2592.4879941863. The cubic root of 6720994 is about 188.7170630948.

The spelling of 6720994 in words is "six million, seven hundred twenty thousand, nine hundred ninety-four".