6945943 has 4 divisors (see below), whose sum is σ = 6961600. Its totient is φ = 6930288.

The previous prime is 6945941. The next prime is 6945947. The reversal of 6945943 is 3495496.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6945943 - 2¹ = 6945941 is a prime.

It is a super-2 number, since 2×6945943² = 96492248318498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6945896 and 6945905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945941) 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, 7143 + ... + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (1740400).

Almost surely, 2^6945943 is an apocalyptic number.

6945943 is a deficient number, since it is larger than the sum of its proper divisors (15657).

6945943 is a wasteful number, since it uses less digits than its factorization.

6945943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15656.

The product of its digits is 116640, while the sum is 40.

The square root of 6945943 is about 2635.5156990616. The cubic root of 6945943 is about 190.7994294483.

The spelling of 6945943 in words is "six million, nine hundred forty-five thousand, nine hundred forty-three".