6720903 has 12 divisors (see below), whose sum is σ = 11094928. Its totient is φ = 3840480.

The previous prime is 6720887. The next prime is 6720911. The reversal of 6720903 is 3090276.

It is not a de Polignac number, because 6720903 - 2⁴ = 6720887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53278 + ... + 53403.

Almost surely, 2^6720903 is an apocalyptic number.

6720903 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6720903 is a deficient number, since it is larger than the sum of its proper divisors (4374025).

6720903 is a wasteful number, since it uses less digits than its factorization.

6720903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106694 (or 106691 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 6720903 is about 2592.4704434188. The cubic root of 6720903 is about 188.7162113691.

The spelling of 6720903 in words is "six million, seven hundred twenty thousand, nine hundred three".