709968377 has 4 divisors (see below), whose sum is σ = 710074020. Its totient is φ = 709862736.

The previous prime is 709968361. The next prime is 709968379. The reversal of 709968377 is 773869907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773869907 = 53 ⋅14601319.

It can be written as a sum of positive squares in 2 ways, for example, as 553943296 + 156025081 = 23536^2 + 12491^2 .

It is a cyclic number.

It is not a de Polignac number, because 709968377 - 2⁴ = 709968361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (709968379) 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, 42002 + ... + 56427.

It is an arithmetic number, because the mean of its divisors is an integer number (177518505).

Almost surely, 2^709968377 is an apocalyptic number.

It is an amenable number.

709968377 is a deficient number, since it is larger than the sum of its proper divisors (105643).

709968377 is an equidigital number, since it uses as much as digits as its factorization.

709968377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105642.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 709968377 is about 26645.2317873198. The cubic root of 709968377 is about 892.0988955249.

The spelling of 709968377 in words is "seven hundred nine million, nine hundred sixty-eight thousand, three hundred seventy-seven".