647112 has 32 divisors (see below), whose sum is σ = 1648800. Its totient is φ = 211584.

The previous prime is 647111. The next prime is 647113. The reversal of 647112 is 211746.

647112 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (647111) and next prime (647113).

It is not an unprimeable number, because it can be changed into a prime (647111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188 + ... + 1644.

It is an arithmetic number, because the mean of its divisors is an integer number (51525).

2⁶⁴⁷¹¹² 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 647112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824400).

647112 is an abundant number, since it is smaller than the sum of its proper divisors (1001688).

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

647112 is a wasteful number, since it uses less digits than its factorization.

647112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 521 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 647112 is about 804.4327193743. The cubic root of 647112 is about 86.4954278270.

Adding to 647112 its reverse (211746), we get a palindrome (858858).

The spelling of 647112 in words is "six hundred forty-seven thousand, one hundred twelve".