6478155 has 24 divisors (see below), whose sum is σ = 11288160. Its totient is φ = 3436800.

The previous prime is 6478117. The next prime is 6478187. The reversal of 6478155 is 5518746.

6478155 is a `hidden beast` number, since 647 + 8 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 6478155 - 2⁷ = 6478027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15955 + ... + 16355.

It is an arithmetic number, because the mean of its divisors is an integer number (470340).

Almost surely, 2^6478155 is an apocalyptic number.

6478155 is a deficient number, since it is larger than the sum of its proper divisors (4810005).

6478155 is a wasteful number, since it uses less digits than its factorization.

6478155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 768 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 6478155 is about 2545.2219942473. The cubic root of 6478155 is about 186.4162547148.

The spelling of 6478155 in words is "six million, four hundred seventy-eight thousand, one hundred fifty-five".