6811972 has 6 divisors (see below), whose sum is σ = 11920958. Its totient is φ = 3405984.

The previous prime is 6811967. The next prime is 6811993. The reversal of 6811972 is 2791186.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6791236 + 20736 = 2606^2 + 144^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851493 + ... + 851500.

Almost surely, 2^6811972 is an apocalyptic number.

It is an amenable number.

6811972 is a deficient number, since it is larger than the sum of its proper divisors (5108986).

6811972 is a wasteful number, since it uses less digits than its factorization.

6811972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702997 (or 1702995 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 6811972 is about 2609.9754788120. The cubic root of 6811972 is about 189.5647655392.

The spelling of 6811972 in words is "six million, eight hundred eleven thousand, nine hundred seventy-two".