705375089 has 4 divisors (see below), whose sum is σ = 710109300. Its totient is φ = 700640880.

The previous prime is 705375071. The next prime is 705375119. The reversal of 705375089 is 980573507.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 302168689 + 403206400 = 17383^2 + 20080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705375089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (705375689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366882 + ... + 2367179.

It is an arithmetic number, because the mean of its divisors is an integer number (177527325).

Almost surely, 2^705375089 is an apocalyptic number.

It is an amenable number.

705375089 is a deficient number, since it is larger than the sum of its proper divisors (4734211).

705375089 is a wasteful number, since it uses less digits than its factorization.

705375089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734210.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 705375089 is about 26558.8984899600. The cubic root of 705375089 is about 890.1708584988.

The spelling of 705375089 in words is "seven hundred five million, three hundred seventy-five thousand, eighty-nine".