708139648 has 16 divisors (see below), whose sum is σ = 1410747210. Its totient is φ = 354069760.

The previous prime is 708139631. The next prime is 708139693. The reversal of 708139648 is 846931807.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 642723904 + 65415744 = 25352^2 + 8088^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×708139648² = 1002923522139127808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 708139598 and 708139607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766043 + ... + 2766298.

Almost surely, 2^708139648 is an apocalyptic number.

It is an amenable number.

708139648 is a deficient number, since it is larger than the sum of its proper divisors (702607562).

708139648 is an equidigital number, since it uses as much as digits as its factorization.

708139648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532355 (or 5532343 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 708139648 is about 26610.8934085273. The cubic root of 708139648 is about 891.3322839864.

The spelling of 708139648 in words is "seven hundred eight million, one hundred thirty-nine thousand, six hundred forty-eight".