6397923 has 8 divisors (see below), whose sum is σ = 9749248. Its totient is φ = 3655944.

The previous prime is 6397921. The next prime is 6397949. The reversal of 6397923 is 3297936.

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

It is not a de Polignac number, because 6397923 - 2¹ = 6397921 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (6397921) 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, 152311 + ... + 152352.

It is an arithmetic number, because the mean of its divisors is an integer number (1218656).

Almost surely, 2^6397923 is an apocalyptic number.

6397923 is a deficient number, since it is larger than the sum of its proper divisors (3351325).

6397923 is a wasteful number, since it uses less digits than its factorization.

6397923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304673.

The product of its digits is 61236, while the sum is 39.

The square root of 6397923 is about 2529.4115916553. The cubic root of 6397923 is about 185.6434666298.

The spelling of 6397923 in words is "six million, three hundred ninety-seven thousand, nine hundred twenty-three".