891834648 has 16 divisors (see below), whose sum is σ = 2229586680. Its totient is φ = 297278208.

The previous prime is 891834631. The next prime is 891834653. The reversal of 891834648 is 846438198.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 891834648.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18579865 + ... + 18579912.

Almost surely, 2^891834648 is an apocalyptic number.

It is an amenable number.

891834648 is an abundant number, since it is smaller than the sum of its proper divisors (1337752032).

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

891834648 is a wasteful number, since it uses less digits than its factorization.

891834648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37159786 (or 37159782 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 891834648 is about 29863.6007206097. The cubic root of 891834648 is about 962.5606723546.

The spelling of 891834648 in words is "eight hundred ninety-one million, eight hundred thirty-four thousand, six hundred forty-eight".