6947121 has 4 divisors (see below), whose sum is σ = 9262832. Its totient is φ = 4631412.

The previous prime is 6947111. The next prime is 6947147. The reversal of 6947121 is 1217496.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6947121 - 2⁵ = 6947089 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6947111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157851 + ... + 1157856.

It is an arithmetic number, because the mean of its divisors is an integer number (2315708).

Almost surely, 2^6947121 is an apocalyptic number.

It is an amenable number.

6947121 is a deficient number, since it is larger than the sum of its proper divisors (2315711).

6947121 is a wasteful number, since it uses less digits than its factorization.

6947121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315710.

The product of its digits is 3024, while the sum is 30.

The square root of 6947121 is about 2635.7391752599. The cubic root of 6947121 is about 190.8102150740.

The spelling of 6947121 in words is "six million, nine hundred forty-seven thousand, one hundred twenty-one".