6909923 has 2 divisors, whose sum is σ = 6909924. Its totient is φ = 6909922.

The previous prime is 6909919. The next prime is 6909941. The reversal of 6909923 is 3299096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6909923 - 2² = 6909919 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6909983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3454961 + 3454962.

It is an arithmetic number, because the mean of its divisors is an integer number (3454962).

Almost surely, 2^6909923 is an apocalyptic number.

6909923 is a deficient number, since it is larger than the sum of its proper divisors (1).

6909923 is an equidigital number, since it uses as much as digits as its factorization.

6909923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 6909923 is about 2628.6732394879. The cubic root of 6909923 is about 190.4690442785.

The spelling of 6909923 in words is "six million, nine hundred nine thousand, nine hundred twenty-three".