705150728 has 16 divisors (see below), whose sum is σ = 1343833260. Its totient is φ = 346795200.

The previous prime is 705150697. The next prime is 705150731. The reversal of 705150728 is 827051507.

It can be written as a sum of positive squares in 2 ways, for example, as 671950084 + 33200644 = 25922^2 + 5762^2 .

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, 722003 + ... + 722978.

Almost surely, 2^705150728 is an apocalyptic number.

It is an amenable number.

705150728 is a deficient number, since it is larger than the sum of its proper divisors (638682532).

705150728 is a wasteful number, since it uses less digits than its factorization.

705150728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445048 (or 1445044 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 705150728 is about 26554.6743154572. The cubic root of 705150728 is about 890.0764686222.

The spelling of 705150728 in words is "seven hundred five million, one hundred fifty thousand, seven hundred twenty-eight".