64872006 has 16 divisors (see below), whose sum is σ = 135385344. Its totient is φ = 20683784.

The previous prime is 64872001. The next prime is 64872007. The reversal of 64872006 is 60027846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64872001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234906 + ... + 235181.

It is an arithmetic number, because the mean of its divisors is an integer number (8461584).

Almost surely, 2^64872006 is an apocalyptic number.

64872006 is an abundant number, since it is smaller than the sum of its proper divisors (70513338).

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

64872006 is a wasteful number, since it uses less digits than its factorization.

64872006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470115.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64872006 is about 8054.3159858550. The cubic root of 64872006 is about 401.8084902515.

The spelling of 64872006 in words is "sixty-four million, eight hundred seventy-two thousand, six".