64987608 has 64 divisors (see below), whose sum is σ = 192096000. Its totient is φ = 17926272.

The previous prime is 64987567. The next prime is 64987613. The reversal of 64987608 is 80678946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1798 + ... + 11541.

It is an arithmetic number, because the mean of its divisors is an integer number (3001500).

Almost surely, 2^64987608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64987608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96048000).

64987608 is an abundant number, since it is smaller than the sum of its proper divisors (127108392).

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

64987608 is a wasteful number, since it uses less digits than its factorization.

64987608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13384 (or 13380 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 64987608 is about 8061.4891924507. The cubic root of 64987608 is about 402.0470230383.

The spelling of 64987608 in words is "sixty-four million, nine hundred eighty-seven thousand, six hundred eight".