707085728 has 12 divisors (see below), whose sum is σ = 1392075090. Its totient is φ = 353542848.

The previous prime is 707085721. The next prime is 707085733. The reversal of 707085728 is 827580707.

It can be written as a sum of positive squares in only one way, i.e., 637663504 + 69422224 = 25252^2 + 8332^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (707085721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11048183 + ... + 11048246.

Almost surely, 2^707085728 is an apocalyptic number.

It is an amenable number.

707085728 is a deficient number, since it is larger than the sum of its proper divisors (684989362).

707085728 is a wasteful number, since it uses less digits than its factorization.

707085728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22096439 (or 22096431 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 707085728 is about 26591.0836183861. The cubic root of 707085728 is about 890.8898762683.

The spelling of 707085728 in words is "seven hundred seven million, eighty-five thousand, seven hundred twenty-eight".