64089618 has 8 divisors (see below), whose sum is σ = 128179248. Its totient is φ = 21363204.

The previous prime is 64089607. The next prime is 64089647. The reversal of 64089618 is 81698046.

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

64089618 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64089618.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340796 + ... + 5340807.

It is an arithmetic number, because the mean of its divisors is an integer number (16022406).

Almost surely, 2^64089618 is an apocalyptic number.

64089618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64089618 is a wasteful number, since it uses less digits than its factorization.

64089618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681608.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 64089618 is about 8005.5991655840. The cubic root of 64089618 is about 400.1866170883.

The spelling of 64089618 in words is "sixty-four million, eighty-nine thousand, six hundred eighteen".