6820743 has 8 divisors (see below), whose sum is σ = 9116800. Its totient is φ = 4535928.

The previous prime is 6820741. The next prime is 6820769. The reversal of 6820743 is 3470286.

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

It is not a de Polignac number, because 6820743 - 2¹ = 6820741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6820743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820741) 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, 1273 + ... + 3906.

It is an arithmetic number, because the mean of its divisors is an integer number (1139600).

Almost surely, 2^6820743 is an apocalyptic number.

6820743 is a deficient number, since it is larger than the sum of its proper divisors (2296057).

6820743 is a wasteful number, since it uses less digits than its factorization.

6820743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 6820743 is about 2611.6552222681. The cubic root of 6820743 is about 189.6460909595.

The spelling of 6820743 in words is "six million, eight hundred twenty thousand, seven hundred forty-three".