1947648 has 48 divisors (see below), whose sum is σ = 5208840. Its totient is φ = 647168.

The previous prime is 1947641. The next prime is 1947653. The reversal of 1947648 is 8467491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947641) 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, 5986 + ... + 6302.

2^1947648 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 1947648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2604420).

1947648 is an abundant number, since it is smaller than the sum of its proper divisors (3261192).

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

1947648 is an equidigital number, since it uses as much as digits as its factorization.

1947648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 322 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1947648 is about 1395.5815991908. The cubic root of 1947648 is about 124.8830479452.

The spelling of 1947648 in words is "one million, nine hundred forty-seven thousand, six hundred forty-eight".