6943429 has 4 divisors (see below), whose sum is σ = 7351884. Its totient is φ = 6534976.

The previous prime is 6943427. The next prime is 6943439. The reversal of 6943429 is 9243496.

6943429 = T₂₁₅₀ + T₂₁₅₁ + T₂₁₅₂.

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 4060225 + 2883204 = 2015^2 + 1698^2 .

It is a cyclic number.

It is not a de Polignac number, because 6943429 - 2¹ = 6943427 is a prime.

It is a super-2 number, since 2×6943429² = 96422412556082, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6⁸ + 9 + 4¹⁰ + 3⁹ + 4¹¹ + 2⁹ + 9³ .

It is a Duffinian number.

6943429 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6943421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204202 + ... + 204235.

It is an arithmetic number, because the mean of its divisors is an integer number (1837971).

Almost surely, 2^6943429 is an apocalyptic number.

6943429 is the 2152-nd centered triangular number.

It is an amenable number.

6943429 is a deficient number, since it is larger than the sum of its proper divisors (408455).

6943429 is a wasteful number, since it uses less digits than its factorization.

6943429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408454.

The product of its digits is 46656, while the sum is 37.

The square root of 6943429 is about 2635.0387093931. The cubic root of 6943429 is about 190.7764074892.

The spelling of 6943429 in words is "six million, nine hundred forty-three thousand, four hundred twenty-nine".