6469855 has 32 divisors (see below), whose sum is σ = 9400320. Its totient is φ = 4181760.

The previous prime is 6469849. The next prime is 6469867. The reversal of 6469855 is 5589646.

6469855 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6469855 - 2³ = 6469847 is a prime.

It is a d-powerful number, because it can be written as 6² + 4¹¹ + 6⁷ + 9⁴ + 8⁵ + 5⁵ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72651 + ... + 72739.

It is an arithmetic number, because the mean of its divisors is an integer number (293760).

Almost surely, 2^6469855 is an apocalyptic number.

6469855 is the 2077-th pentagonal number.

6469855 is a deficient number, since it is larger than the sum of its proper divisors (2930465).

6469855 is a wasteful number, since it uses less digits than its factorization.

6469855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199.

The product of its digits is 259200, while the sum is 43.

The square root of 6469855 is about 2543.5909655446. The cubic root of 6469855 is about 186.3366067193.

It can be divided in two parts, 646 and 9855, that added together give a palindrome (10501).

The spelling of 6469855 in words is "six million, four hundred sixty-nine thousand, eight hundred fifty-five".