6397465 has 4 divisors (see below), whose sum is σ = 7676964. Its totient is φ = 5117968.

The previous prime is 6397463. The next prime is 6397493. The reversal of 6397465 is 5647936.

6397465 = 1788² + 1789².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3196944 + 3200521 = 1788^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 6397465 - 2¹ = 6397463 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6397463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639742 + ... + 639751.

It is an arithmetic number, because the mean of its divisors is an integer number (1919241).

Almost surely, 2^6397465 is an apocalyptic number.

6397465 is the 1789-th centered square number.

It is an amenable number.

6397465 is a deficient number, since it is larger than the sum of its proper divisors (1279499).

6397465 is a wasteful number, since it uses less digits than its factorization.

6397465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279498.

The product of its digits is 136080, while the sum is 40.

The square root of 6397465 is about 2529.3210551450. The cubic root of 6397465 is about 185.6390367162.

The spelling of 6397465 in words is "six million, three hundred ninety-seven thousand, four hundred sixty-five".