64887000 has 128 divisors (see below), whose sum is σ = 207567360. Its totient is φ = 16867200.

The previous prime is 64886989. The next prime is 64887023. The reversal of 64887000 is 78846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128749 + ... + 129251.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^64887000 is an apocalyptic number.

64887000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64887000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103783680).

64887000 is an abundant number, since it is smaller than the sum of its proper divisors (142680360).

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

64887000 is a wasteful number, since it uses less digits than its factorization.

64887000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 64887000 is about 8055.2467373756. The cubic root of 64887000 is about 401.8394448073.

The spelling of 64887000 in words is "sixty-four million, eight hundred eighty-seven thousand".