648232708 has 18 divisors (see below), whose sum is σ = 1174879706. Its totient is φ = 312938304.

The previous prime is 648232693. The next prime is 648232721. The reversal of 648232708 is 807232846.

It can be written as a sum of positive squares in 3 ways, for example, as 264777984 + 383454724 = 16272^2 + 19582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92985 + ... + 99712.

Almost surely, 2^648232708 is an apocalyptic number.

It is an amenable number.

648232708 is a deficient number, since it is larger than the sum of its proper divisors (526646998).

648232708 is a wasteful number, since it uses less digits than its factorization.

648232708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192759 (or 192728 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 648232708 is about 25460.4145292256. The cubic root of 648232708 is about 865.4533171366.

The spelling of 648232708 in words is "six hundred forty-eight million, two hundred thirty-two thousand, seven hundred eight".