64870066 has 8 divisors (see below), whose sum is σ = 102426480. Its totient is φ = 30727908.

The previous prime is 64870033. The next prime is 64870067. The reversal of 64870066 is 66007846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (64870067) 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 3 ways as a sum of consecutive naturals, for example, 853516 + ... + 853591.

It is an arithmetic number, because the mean of its divisors is an integer number (12803310).

Almost surely, 2^64870066 is an apocalyptic number.

64870066 is a deficient number, since it is larger than the sum of its proper divisors (37556414).

64870066 is a wasteful number, since it uses less digits than its factorization.

64870066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707128.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 64870066 is about 8054.1955526297. The cubic root of 64870066 is about 401.8044848451.

The spelling of 64870066 in words is "sixty-four million, eight hundred seventy thousand, sixty-six".