5471664 has 80 divisors (see below), whose sum is σ = 15844224. Its totient is φ = 1612800.

The previous prime is 5471663. The next prime is 5471681. The reversal of 5471664 is 4661745.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (5471663) by changing a digit.

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, 22584 + ... + 22824.

Almost surely, 2^5471664 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 5471664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7922112).

5471664 is an abundant number, since it is smaller than the sum of its proper divisors (10372560).

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

5471664 is a wasteful number, since it uses less digits than its factorization.

5471664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 5471664 is about 2339.1588231670. The cubic root of 5471664 is about 176.2137554363.

It can be divided in two parts, 547 and 1664, that added together give a triangular number (2211 = T₆₆).

The spelling of 5471664 in words is "five million, four hundred seventy-one thousand, six hundred sixty-four".