6943394 has 4 divisors (see below), whose sum is σ = 10415094. Its totient is φ = 3471696.

The previous prime is 6943351. The next prime is 6943397. The reversal of 6943394 is 4933496.

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

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 169 = 2635^2 + 13^2 .

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁸ + 9⁴ + 4 + 3³ + 3¹² + 9⁶ + 4¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6943397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1735847 + ... + 1735850.

Almost surely, 2^6943394 is an apocalyptic number.

6943394 is a deficient number, since it is larger than the sum of its proper divisors (3471700).

6943394 is a wasteful number, since it uses less digits than its factorization.

6943394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471699.

The product of its digits is 69984, while the sum is 38.

The square root of 6943394 is about 2635.0320681161. The cubic root of 6943394 is about 190.7760869374.

It can be divided in two parts, 6943 and 394, that added together give a palindrome (7337).

The spelling of 6943394 in words is "six million, nine hundred forty-three thousand, three hundred ninety-four".