648846736 has 20 divisors (see below), whose sum is σ = 1258013232. Its totient is φ = 324198176.

The previous prime is 648846719. The next prime is 648846743. The reversal of 648846736 is 637648846.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11055 + ... + 37681.

Almost surely, 2^648846736 is an apocalyptic number.

It is an amenable number.

648846736 is a deficient number, since it is larger than the sum of its proper divisors (609166496).

648846736 is a wasteful number, since it uses less digits than its factorization.

648846736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28158 (or 28152 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 52.

The square root of 648846736 is about 25472.4701589775. The cubic root of 648846736 is about 865.7264931429.

The spelling of 648846736 in words is "six hundred forty-eight million, eight hundred forty-six thousand, seven hundred thirty-six".