706032661 has 4 divisors (see below), whose sum is σ = 747564012. Its totient is φ = 664501312.

The previous prime is 706032643. The next prime is 706032671. The reversal of 706032661 is 166230607.

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 591948900 + 114083761 = 24330^2 + 10681^2 .

It is a cyclic number.

It is not a de Polignac number, because 706032661 - 2⁹ = 706032149 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706032641) 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, 20765650 + ... + 20765683.

It is an arithmetic number, because the mean of its divisors is an integer number (186891003).

Almost surely, 2^706032661 is an apocalyptic number.

It is an amenable number.

706032661 is a deficient number, since it is larger than the sum of its proper divisors (41531351).

706032661 is a wasteful number, since it uses less digits than its factorization.

706032661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41531350.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 706032661 is about 26571.2751105400. The cubic root of 706032661 is about 890.4473873229.

The spelling of 706032661 in words is "seven hundred six million, thirty-two thousand, six hundred sixty-one".