709435961 has 16 divisors (see below), whose sum is σ = 815861760. Its totient is φ = 611876160.

The previous prime is 709435949. The next prime is 709435963. The reversal of 709435961 is 169534907.

It is a cyclic number.

It is not a de Polignac number, because 709435961 - 2¹⁰ = 709434937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709435963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18665 + ... + 42038.

It is an arithmetic number, because the mean of its divisors is an integer number (50991360).

Almost surely, 2^709435961 is an apocalyptic number.

It is an amenable number.

709435961 is a deficient number, since it is larger than the sum of its proper divisors (106425799).

709435961 is a wasteful number, since it uses less digits than its factorization.

709435961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60776.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 709435961 is about 26635.2390828391. The cubic root of 709435961 is about 891.8758402834.

The spelling of 709435961 in words is "seven hundred nine million, four hundred thirty-five thousand, nine hundred sixty-one".