4891648 has 44 divisors (see below), whose sum is σ = 10390572. Its totient is φ = 2293760.

The previous prime is 4891643. The next prime is 4891661. The reversal of 4891648 is 8461984.

It can be written as a sum of positive squares in 2 ways, for example, as 3564544 + 1327104 = 1888^2 + 1152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4891648.

It is not an unprimeable number, because it can be changed into a prime (4891643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17268 + ... + 17548.

Almost surely, 2^4891648 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 4891648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5195286).

4891648 is an abundant number, since it is smaller than the sum of its proper divisors (5498924).

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

4891648 is a wasteful number, since it uses less digits than its factorization.

4891648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 300 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 4891648 is about 2211.7070330403. The cubic root of 4891648 is about 169.7533678549.

The spelling of 4891648 in words is "four million, eight hundred ninety-one thousand, six hundred forty-eight".