6917923 has 2 divisors, whose sum is σ = 6917924. Its totient is φ = 6917922.

The previous prime is 6917899. The next prime is 6917941. The reversal of 6917923 is 3297196.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6917923 is a prime.

It is not a weakly prime, because it can be changed into another prime (6917983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3458961 + 3458962.

It is an arithmetic number, because the mean of its divisors is an integer number (3458962).

Almost surely, 2^6917923 is an apocalyptic number.

6917923 is a deficient number, since it is larger than the sum of its proper divisors (1).

6917923 is an equidigital number, since it uses as much as digits as its factorization.

6917923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 37.

The square root of 6917923 is about 2630.1944795015. The cubic root of 6917923 is about 190.5425214450.

The spelling of 6917923 in words is "six million, nine hundred seventeen thousand, nine hundred twenty-three".