6720894 has 24 divisors (see below), whose sum is σ = 15102360. Its totient is φ = 2240136.

The previous prime is 6720887. The next prime is 6720911. The reversal of 6720894 is 4980276.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6429 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (629265).

Almost surely, 2^6720894 is an apocalyptic number.

6720894 is an abundant number, since it is smaller than the sum of its proper divisors (8381466).

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

6720894 is a wasteful number, since it uses less digits than its factorization.

6720894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13846 (or 13834 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 6720894 is about 2592.4687076221. The cubic root of 6720894 is about 188.7161271321.

The spelling of 6720894 in words is "six million, seven hundred twenty thousand, eight hundred ninety-four".