641487088 has 40 divisors (see below), whose sum is σ = 1366269696. Its totient is φ = 289348800.

The previous prime is 641487073. The next prime is 641487131. The reversal of 641487088 is 880784146.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9145 + ... + 36967.

Almost surely, 2^641487088 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 641487088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683134848).

641487088 is an abundant number, since it is smaller than the sum of its proper divisors (724782608).

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

641487088 is a wasteful number, since it uses less digits than its factorization.

641487088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27973 (or 27967 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 641487088 is about 25327.5953852710. The cubic root of 641487088 is about 862.4408251217.

The spelling of 641487088 in words is "six hundred forty-one million, four hundred eighty-seven thousand, eighty-eight".