6461808 has 40 divisors (see below), whose sum is σ = 16867968. Its totient is φ = 2131392.

The previous prime is 6461803. The next prime is 6461821. The reversal of 6461808 is 8081646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461801) 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, 4291 + ... + 5597.

Almost surely, 2^6461808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6461808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8433984).

6461808 is an abundant number, since it is smaller than the sum of its proper divisors (10406160).

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

6461808 is a wasteful number, since it uses less digits than its factorization.

6461808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 6461808 is about 2542.0086545879. The cubic root of 6461808 is about 186.2593214859.

The spelling of 6461808 in words is "six million, four hundred sixty-one thousand, eight hundred eight".