6461655 has 16 divisors (see below), whose sum is σ = 10447584. Its totient is φ = 3409920.

The previous prime is 6461627. The next prime is 6461657. The reversal of 6461655 is 5561646.

It is not a de Polignac number, because 6461655 - 2⁷ = 6461527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766 + ... + 3675.

It is an arithmetic number, because the mean of its divisors is an integer number (652974).

Almost surely, 2^6461655 is an apocalyptic number.

6461655 is a deficient number, since it is larger than the sum of its proper divisors (3985929).

6461655 is a wasteful number, since it uses less digits than its factorization.

6461655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546.

The product of its digits is 21600, while the sum is 33.

The square root of 6461655 is about 2541.9785600984. The cubic root of 6461655 is about 186.2578514174.

Subtracting from 6461655 its reverse (5561646), we obtain a palindrome (900009).

The spelling of 6461655 in words is "six million, four hundred sixty-one thousand, six hundred fifty-five".