6364881 has 24 divisors (see below), whose sum is σ = 9644544. Its totient is φ = 4040640.

The previous prime is 6364879. The next prime is 6364901. The reversal of 6364881 is 1884636.

It is a happy number.

6364881 is a `hidden beast` number, since 6 + 3 + 648 + 8 + 1 = 666.

It is not a de Polignac number, because 6364881 - 2¹ = 6364879 is a prime.

It is a super-2 number, since 2×6364881² = 81023420288322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6364811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17160 + ... + 17526.

It is an arithmetic number, because the mean of its divisors is an integer number (401856).

Almost surely, 2^6364881 is an apocalyptic number.

It is an amenable number.

6364881 is a deficient number, since it is larger than the sum of its proper divisors (3279663).

6364881 is a wasteful number, since it uses less digits than its factorization.

6364881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6364881 is about 2522.8715781823. The cubic root of 6364881 is about 185.3233303637.

The spelling of 6364881 in words is "six million, three hundred sixty-four thousand, eight hundred eighty-one".