647241332 has 12 divisors (see below), whose sum is σ = 1159013856. Its totient is φ = 316094520.

The previous prime is 647241317. The next prime is 647241337. The reversal of 647241332 is 233142746.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647241337) 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, 1881344 + ... + 1881687.

It is an arithmetic number, because the mean of its divisors is an integer number (96584488).

Almost surely, 2^647241332 is an apocalyptic number.

It is an amenable number.

647241332 is a deficient number, since it is larger than the sum of its proper divisors (511772524).

647241332 is a wasteful number, since it uses less digits than its factorization.

647241332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763078 (or 3763076 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 647241332 is about 25440.9381116342. The cubic root of 647241332 is about 865.0118977726.

The spelling of 647241332 in words is "six hundred forty-seven million, two hundred forty-one thousand, three hundred thirty-two".