64009887 has 8 divisors (see below), whose sum is σ = 85392000. Its totient is φ = 42650520.

The previous prime is 64009859. The next prime is 64009901. The reversal of 64009887 is 78890046.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-64009887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64029887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2614 + ... + 11612.

It is an arithmetic number, because the mean of its divisors is an integer number (10674000).

Almost surely, 2^64009887 is an apocalyptic number.

64009887 is a deficient number, since it is larger than the sum of its proper divisors (21382113).

64009887 is a wasteful number, since it uses less digits than its factorization.

64009887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11373.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 64009887 is about 8000.6179136364. The cubic root of 64009887 is about 400.0205968561.

The spelling of 64009887 in words is "sixty-four million, nine thousand, eight hundred eighty-seven".