6465478 has 4 divisors (see below), whose sum is σ = 9698220. Its totient is φ = 3232738.

The previous prime is 6465469. The next prime is 6465493. The reversal of 6465478 is 8745646.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6465478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616368 + ... + 1616371.

It is an arithmetic number, because the mean of its divisors is an integer number (2424555).

Almost surely, 2^6465478 is an apocalyptic number.

6465478 is a deficient number, since it is larger than the sum of its proper divisors (3232742).

6465478 is a wasteful number, since it uses less digits than its factorization.

6465478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232741.

The product of its digits is 161280, while the sum is 40.

The square root of 6465478 is about 2542.7304222037. The cubic root of 6465478 is about 186.2945769613.

The spelling of 6465478 in words is "six million, four hundred sixty-five thousand, four hundred seventy-eight".