6478655 has 8 divisors (see below), whose sum is σ = 7826784. Its totient is φ = 5148000.

The previous prime is 6478631. The next prime is 6478673. The reversal of 6478655 is 5568746.

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

It is not a de Polignac number, because 6478655 - 2¹⁴ = 6462271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 5045.

It is an arithmetic number, because the mean of its divisors is an integer number (978348).

Almost surely, 2^6478655 is an apocalyptic number.

6478655 is a deficient number, since it is larger than the sum of its proper divisors (1348129).

6478655 is a wasteful number, since it uses less digits than its factorization.

6478655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8737.

The product of its digits is 201600, while the sum is 41.

The square root of 6478655 is about 2545.3202156114. The cubic root of 6478655 is about 186.4210506137.

Subtracting from 6478655 its reverse (5568746), we obtain a palindrome (909909).

The spelling of 6478655 in words is "six million, four hundred seventy-eight thousand, six hundred fifty-five".