6945493 has 4 divisors (see below), whose sum is σ = 6953580. Its totient is φ = 6937408.

The previous prime is 6945481. The next prime is 6945509. The reversal of 6945493 is 3945496.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3928324 + 3017169 = 1982^2 + 1737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6945493 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945473) 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, 2578 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (1738395).

Almost surely, 2^6945493 is an apocalyptic number.

It is an amenable number.

6945493 is a deficient number, since it is larger than the sum of its proper divisors (8087).

6945493 is an equidigital number, since it uses as much as digits as its factorization.

6945493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086.

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

The square root of 6945493 is about 2635.4303253928. The cubic root of 6945493 is about 190.7953089808.

The spelling of 6945493 in words is "six million, nine hundred forty-five thousand, four hundred ninety-three".