6448455 has 48 divisors (see below), whose sum is σ = 12282816. Its totient is φ = 3110400.

The previous prime is 6448451. The next prime is 6448483. The reversal of 6448455 is 5548446.

6448455 is a `hidden beast` number, since 644 + 8 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 6448455 - 2² = 6448451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448451) 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 47 ways as a sum of consecutive naturals, for example, 42630 + ... + 42780.

It is an arithmetic number, because the mean of its divisors is an integer number (255892).

Almost surely, 2^6448455 is an apocalyptic number.

6448455 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6448455 is a deficient number, since it is larger than the sum of its proper divisors (5834361).

6448455 is a wasteful number, since it uses less digits than its factorization.

6448455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 245 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 6448455 is about 2539.3808300450. The cubic root of 6448455 is about 186.1309345154.

Subtracting from 6448455 its reverse (5548446), we obtain a palindrome (900009).

It can be divided in two parts, 6448 and 455, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 6448455 in words is "six million, four hundred forty-eight thousand, four hundred fifty-five".