948639984 has 80 divisors (see below), whose sum is σ = 2612332800. Its totient is φ = 295603200.

The previous prime is 948639973. The next prime is 948639997. The reversal of 948639984 is 489936849.

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 15 ways as a sum of consecutive naturals, for example, 119367 + ... + 127065.

It is an arithmetic number, because the mean of its divisors is an integer number (32654160).

Almost surely, 2^948639984 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 948639984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306166400).

948639984 is an abundant number, since it is smaller than the sum of its proper divisors (1663692816).

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

948639984 is a wasteful number, since it uses less digits than its factorization.

948639984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878 (or 7872 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 948639984 is about 30799.9997402597. Note that the first 3 decimals coincide. The cubic root of 948639984 is about 982.5782395334.

The spelling of 948639984 in words is "nine hundred forty-eight million, six hundred thirty-nine thousand, nine hundred eighty-four".