6464886 has 32 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 2031744.

The previous prime is 6464881. The next prime is 6464891. The reversal of 6464886 is 6884646.

It is an interprime number because it is at equal distance from previous prime (6464881) and next prime (6464891).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464881) 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, 10606 + ... + 11198.

It is an arithmetic number, because the mean of its divisors is an integer number (427680).

Almost surely, 2^6464886 is an apocalyptic number.

6464886 is an abundant number, since it is smaller than the sum of its proper divisors (7220874).

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

6464886 is a wasteful number, since it uses less digits than its factorization.

6464886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its digits is 221184, while the sum is 42.

The square root of 6464886 is about 2542.6140092432. The cubic root of 6464886 is about 186.2888908772.

The spelling of 6464886 in words is "six million, four hundred sixty-four thousand, eight hundred eighty-six".