891448932 has 96 divisors (see below), whose sum is σ = 2310497280. Its totient is φ = 265265280.

The previous prime is 891448889. The next prime is 891448933. The reversal of 891448932 is 239844198.

It is not an unprimeable number, because it can be changed into a prime (891448933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2351919 + ... + 2352297.

It is an arithmetic number, because the mean of its divisors is an integer number (24067680).

Almost surely, 2^891448932 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 891448932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155248640).

891448932 is an abundant number, since it is smaller than the sum of its proper divisors (1419048348).

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

891448932 is a wasteful number, since it uses less digits than its factorization.

891448932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 671 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 891448932 is about 29857.1420601504. The cubic root of 891448932 is about 962.4218840747.

The spelling of 891448932 in words is "eight hundred ninety-one million, four hundred forty-eight thousand, nine hundred thirty-two".