890616560 has 40 divisors (see below), whose sum is σ = 2095647120. Its totient is φ = 351951872.

The previous prime is 890616541. The next prime is 890616613. The reversal of 890616560 is 65616098.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60425 + ... + 73704.

It is an arithmetic number, because the mean of its divisors is an integer number (52391178).

Almost surely, 2^890616560 is an apocalyptic number.

890616560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

890616560 is an abundant number, since it is smaller than the sum of its proper divisors (1205030560).

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

890616560 is a wasteful number, since it uses less digits than its factorization.

890616560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134225 (or 134219 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 890616560 is about 29843.1995603689. The cubic root of 890616560 is about 962.1222436190.

The spelling of 890616560 in words is "eight hundred ninety million, six hundred sixteen thousand, five hundred sixty".