647563367 has 16 divisors (see below), whose sum is σ = 744774912. Its totient is φ = 557272320.

The previous prime is 647563327. The next prime is 647563379. The reversal of 647563367 is 763365746.

It is not a de Polignac number, because 647563367 - 2¹² = 647559271 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 (647563327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11348 + ... + 37734.

It is an arithmetic number, because the mean of its divisors is an integer number (46548432).

Almost surely, 2^647563367 is an apocalyptic number.

647563367 is a deficient number, since it is larger than the sum of its proper divisors (97211545).

647563367 is a wasteful number, since it uses less digits than its factorization.

647563367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518.

The product of its digits is 1905120, while the sum is 47.

The square root of 647563367 is about 25447.2663954304. The cubic root of 647563367 is about 865.1553362427.

The spelling of 647563367 in words is "six hundred forty-seven million, five hundred sixty-three thousand, three hundred sixty-seven".