6947431 has 8 divisors (see below), whose sum is σ = 7130480. Its totient is φ = 6766848.

The previous prime is 6947419. The next prime is 6947459. The reversal of 6947431 is 1347496.

It is a happy number.

6947431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6947431 is a prime.

It is a super-2 number, since 2×6947431² = 96533594999522, which contains 22 as substring.

It is a Duffinian number.

6947431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6947401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5965 + ... + 7033.

It is an arithmetic number, because the mean of its divisors is an integer number (891310).

Almost surely, 2^6947431 is an apocalyptic number.

6947431 is a deficient number, since it is larger than the sum of its proper divisors (183049).

6947431 is a wasteful number, since it uses less digits than its factorization.

6947431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233.

The product of its digits is 18144, while the sum is 34.

The square root of 6947431 is about 2635.7979816367. The cubic root of 6947431 is about 190.8130531939.

The spelling of 6947431 in words is "six million, nine hundred forty-seven thousand, four hundred thirty-one".