6464487 has 4 divisors (see below), whose sum is σ = 8619320. Its totient is φ = 4309656.

The previous prime is 6464483. The next prime is 6464501. The reversal of 6464487 is 7844646.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6464487 - 2² = 6464483 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077412 + ... + 1077417.

It is an arithmetic number, because the mean of its divisors is an integer number (2154830).

Almost surely, 2^6464487 is an apocalyptic number.

6464487 is a deficient number, since it is larger than the sum of its proper divisors (2154833).

6464487 is a wasteful number, since it uses less digits than its factorization.

6464487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154832.

The product of its digits is 129024, while the sum is 39.

The square root of 6464487 is about 2542.5355454742. The cubic root of 6464487 is about 186.2850583375.

The spelling of 6464487 in words is "six million, four hundred sixty-four thousand, four hundred eighty-seven".