6461616 has 40 divisors (see below), whose sum is σ = 19078144. Its totient is φ = 1846080.

The previous prime is 6461573. The next prime is 6461617. The reversal of 6461616 is 6161646.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6461617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9280 + ... + 9951.

Almost surely, 2^6461616 is an apocalyptic number.

It is an amenable number.

6461616 is an abundant number, since it is smaller than the sum of its proper divisors (12616528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6461616 is a wasteful number, since it uses less digits than its factorization.

6461616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19249 (or 19243 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 6461616 is about 2541.9708888970. The cubic root of 6461616 is about 186.2574766904.

Adding to 6461616 its sum of digits (30), we get a palindrome (6461646).

The spelling of 6461616 in words is "six million, four hundred sixty-one thousand, six hundred sixteen".