64087668 has 36 divisors (see below), whose sum is σ = 162253728. Its totient is φ = 21329040.

The previous prime is 64087657. The next prime is 64087669. The reversal of 64087668 is 86678046.

It is a happy number.

64087668 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

64087668 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64087669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34483 + ... + 36293.

It is an arithmetic number, because the mean of its divisors is an integer number (4507048).

Almost surely, 2^64087668 is an apocalyptic number.

It is an amenable number.

64087668 is an abundant number, since it is smaller than the sum of its proper divisors (98166060).

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

64087668 is a wasteful number, since it uses less digits than its factorization.

64087668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804 (or 2799 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 64087668 is about 8005.4773748978. The cubic root of 64087668 is about 400.1825583351.

The spelling of 64087668 in words is "sixty-four million, eighty-seven thousand, six hundred sixty-eight".