890943984 has 120 divisors (see below), whose sum is σ = 2855754720. Its totient is φ = 254006784.

The previous prime is 890943971. The next prime is 890944013. The reversal of 890943984 is 489349098.

It is a self number, because there is not a number n which added to its sum of digits gives 890943984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802822 + ... + 803930.

It is an arithmetic number, because the mean of its divisors is an integer number (23797956).

Almost surely, 2^890943984 is an apocalyptic number.

890943984 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890943984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427877360).

890943984 is an abundant number, since it is smaller than the sum of its proper divisors (1964810736).

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

890943984 is a wasteful number, since it uses less digits than its factorization.

890943984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 890943984 is about 29848.6847951463. The cubic root of 890943984 is about 962.2401332290.

The spelling of 890943984 in words is "eight hundred ninety million, nine hundred forty-three thousand, nine hundred eighty-four".