6940823 has 2 divisors, whose sum is σ = 6940824. Its totient is φ = 6940822.

The previous prime is 6940783. The next prime is 6940841. The reversal of 6940823 is 3280496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6940823 - 2¹⁰ = 6939799 is a prime.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 6940823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6940853) 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 as a sum of consecutive naturals, namely, 3470411 + 3470412.

It is an arithmetic number, because the mean of its divisors is an integer number (3470412).

Almost surely, 2^6940823 is an apocalyptic number.

6940823 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940823 is an equidigital number, since it uses as much as digits as its factorization.

6940823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 6940823 is about 2634.5441730971. The cubic root of 6940823 is about 190.7525371734.

The spelling of 6940823 in words is "six million, nine hundred forty thousand, eight hundred twenty-three".