6840273 has 32 divisors (see below), whose sum is σ = 10730880. Its totient is φ = 3829760.

The previous prime is 6840271. The next prime is 6840287. The reversal of 6840273 is 3720486.

It is not a de Polignac number, because 6840273 - 2¹ = 6840271 is a prime.

It is an Ulam number.

6840273 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6840273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840271) 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 31 ways as a sum of consecutive naturals, for example, 49861 + ... + 49997.

It is an arithmetic number, because the mean of its divisors is an integer number (335340).

Almost surely, 2^6840273 is an apocalyptic number.

It is an amenable number.

6840273 is a deficient number, since it is larger than the sum of its proper divisors (3890607).

6840273 is a wasteful number, since it uses less digits than its factorization.

6840273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

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

The square root of 6840273 is about 2615.3915576831. The cubic root of 6840273 is about 189.8269245686.

The spelling of 6840273 in words is "six million, eight hundred forty thousand, two hundred seventy-three".