6397958 has 16 divisors (see below), whose sum is σ = 11073024. Its totient is φ = 2715720.

The previous prime is 6397957. The next prime is 6397961. The reversal of 6397958 is 8597936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638 + ... + 3633.

It is an arithmetic number, because the mean of its divisors is an integer number (692064).

Almost surely, 2^6397958 is an apocalyptic number.

6397958 is a deficient number, since it is larger than the sum of its proper divisors (4675066).

6397958 is a wasteful number, since it uses less digits than its factorization.

6397958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4387.

The product of its digits is 408240, while the sum is 47.

The square root of 6397958 is about 2529.4185102509. The cubic root of 6397958 is about 185.6438051516.

The spelling of 6397958 in words is "six million, three hundred ninety-seven thousand, nine hundred fifty-eight".