647792948 has 48 divisors (see below), whose sum is σ = 1284474240. Its totient is φ = 283276800.

The previous prime is 647792927. The next prime is 647792993. The reversal of 647792948 is 849297746.

It is a junction number, because it is equal to n+sod(n) for n = 647792893 and 647792902.

It is a congruent number.

It is an unprimeable number.

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, 129233 + ... + 134151.

It is an arithmetic number, because the mean of its divisors is an integer number (26759880).

Almost surely, 2^647792948 is an apocalyptic number.

It is an amenable number.

647792948 is a deficient number, since it is larger than the sum of its proper divisors (636681292).

647792948 is a wasteful number, since it uses less digits than its factorization.

647792948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048 (or 5046 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The square root of 647792948 is about 25451.7769124279. The cubic root of 647792948 is about 865.2575654964.

The spelling of 647792948 in words is "six hundred forty-seven million, seven hundred ninety-two thousand, nine hundred forty-eight".