6466397 has 8 divisors (see below), whose sum is σ = 7570752. Its totient is φ = 5407200.

The previous prime is 6466393. The next prime is 6466399. The reversal of 6466397 is 7936646.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6466397 - 2² = 6466393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an Ulam number.

It is a d-powerful number, because it can be written as 6³ + 4³ + 6⁴ + 6⁸ + 3⁷ + 9⁷ + 7² .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10979 + ... + 11552.

It is an arithmetic number, because the mean of its divisors is an integer number (946344).

Almost surely, 2^6466397 is an apocalyptic number.

It is an amenable number.

6466397 is a deficient number, since it is larger than the sum of its proper divisors (1104355).

6466397 is a wasteful number, since it uses less digits than its factorization.

6466397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22579.

The product of its digits is 163296, while the sum is 41.

The square root of 6466397 is about 2542.9111270353. The cubic root of 6466397 is about 186.3034031510.

It can be divided in two parts, 646639 and 7, that added together give a palindrome (646646).

The spelling of 6466397 in words is "six million, four hundred sixty-six thousand, three hundred ninety-seven".