6820916 has 24 divisors (see below), whose sum is σ = 12472320. Its totient is φ = 3259872.

The previous prime is 6820909. The next prime is 6820921. The reversal of 6820916 is 6190286.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14501 + ... + 14963.

It is an arithmetic number, because the mean of its divisors is an integer number (519680).

Almost surely, 2^6820916 is an apocalyptic number.

It is an amenable number.

6820916 is a deficient number, since it is larger than the sum of its proper divisors (5651404).

6820916 is a wasteful number, since it uses less digits than its factorization.

6820916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 6820916 is about 2611.6883428158. The cubic root of 6820916 is about 189.6476943281.

The spelling of 6820916 in words is "six million, eight hundred twenty thousand, nine hundred sixteen".