647225327 has 4 divisors (see below), whose sum is σ = 739686096. Its totient is φ = 554764560.

The previous prime is 647225321. The next prime is 647225353. The reversal of 647225327 is 723522746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 723522746 = 2 ⋅361761373.

It is not a de Polignac number, because 647225327 - 2²⁶ = 580116463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647225321) 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, 46230374 + ... + 46230387.

It is an arithmetic number, because the mean of its divisors is an integer number (184921524).

Almost surely, 2^647225327 is an apocalyptic number.

647225327 is a deficient number, since it is larger than the sum of its proper divisors (92460769).

647225327 is an equidigital number, since it uses as much as digits as its factorization.

647225327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92460768.

The product of its digits is 141120, while the sum is 38.

The square root of 647225327 is about 25440.6235576096. The cubic root of 647225327 is about 865.0047677018.

The spelling of 647225327 in words is "six hundred forty-seven million, two hundred twenty-five thousand, three hundred twenty-seven".