647674323 has 8 divisors (see below), whose sum is σ = 875395728. Its totient is φ = 425867904.

The previous prime is 647674301. The next prime is 647674331. The reversal of 647674323 is 323476746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 647674323 - 2⁸ = 647674067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647674343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1478490 + ... + 1478927.

It is an arithmetic number, because the mean of its divisors is an integer number (109424466).

Almost surely, 2^647674323 is an apocalyptic number.

647674323 is a deficient number, since it is larger than the sum of its proper divisors (227721405).

647674323 is a wasteful number, since it uses less digits than its factorization.

647674323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957493.

The product of its digits is 508032, while the sum is 42.

The square root of 647674323 is about 25449.4464183408. The cubic root of 647674323 is about 865.2047464360.

The spelling of 647674323 in words is "six hundred forty-seven million, six hundred seventy-four thousand, three hundred twenty-three".