647232 has 28 divisors (see below), whose sum is σ = 1712976. Its totient is φ = 215680.

The previous prime is 647219. The next prime is 647261. The reversal of 647232 is 232746.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 6⁶ + 4⁷ + 2⁹ + 7³ + 3¹⁰ + 2¹⁹ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 647232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1494 + ... + 1877.

2⁶⁴⁷²³² is an apocalyptic number.

It is an amenable number.

647232 is an abundant number, since it is smaller than the sum of its proper divisors (1065744).

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

647232 is a wasteful number, since it uses less digits than its factorization.

647232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386 (or 3376 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 647232 is about 804.5073026393. The cubic root of 647232 is about 86.5007740472.

Adding to 647232 its reverse (232746), we get a palindrome (879978).

The spelling of 647232 in words is "six hundred forty-seven thousand, two hundred thirty-two".