960664709 has 4 divisors (see below), whose sum is σ = 960752460. Its totient is φ = 960576960.

The previous prime is 960664657. The next prime is 960664721. The reversal of 960664709 is 907466069.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 524272609 + 436392100 = 22897^2 + 20890^2 .

It is a cyclic number.

It is not a de Polignac number, because 960664709 - 2¹⁶ = 960599173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (960664769) 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, 24644 + ... + 50285.

It is an arithmetic number, because the mean of its divisors is an integer number (240188115).

Almost surely, 2^960664709 is an apocalyptic number.

It is an amenable number.

960664709 is a deficient number, since it is larger than the sum of its proper divisors (87751).

960664709 is a wasteful number, since it uses less digits than its factorization.

960664709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87750.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 960664709 is about 30994.5916088598. The cubic root of 960664709 is about 986.7124596142.

The spelling of 960664709 in words is "nine hundred sixty million, six hundred sixty-four thousand, seven hundred nine".