6811047 has 14 divisors (see below), whose sum is σ = 10212992. Its totient is φ = 4540212.

The previous prime is 6811037. The next prime is 6811061. The reversal of 6811047 is 7401186.

It is a happy number.

It is not a de Polignac number, because 6811047 - 2⁴ = 6811031 is a prime.

It is a super-2 number, since 2×6811047² = 92780722472418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

6811047 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6811047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6811037) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3943 + ... + 5400.

Almost surely, 2^6811047 is an apocalyptic number.

6811047 is a deficient number, since it is larger than the sum of its proper divisors (3401945).

6811047 is an frugal number, since it uses more digits than its factorization.

6811047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361 (or 9346 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 6811047 is about 2609.7982680659. The cubic root of 6811047 is about 189.5561847961.

It can be divided in two parts, 681 and 1047, that added together give a cube (1728 = 12³).

The spelling of 6811047 in words is "six million, eight hundred eleven thousand, forty-seven".