709620881 has 2 divisors, whose sum is σ = 709620882. Its totient is φ = 709620880.

The previous prime is 709620859. The next prime is 709620883. The reversal of 709620881 is 188026907.

709620881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485100625 + 224520256 = 22025^2 + 14984^2 .

It is a cyclic number.

It is not a de Polignac number, because 709620881 - 2¹⁰ = 709619857 is a prime.

It is a super-2 number, since 2×709620881² = 1007123589502432322, which contains 22 as substring.

Together with 709620883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (709620883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354810440 + 354810441.

It is an arithmetic number, because the mean of its divisors is an integer number (354810441).

Almost surely, 2^709620881 is an apocalyptic number.

It is an amenable number.

709620881 is a deficient number, since it is larger than the sum of its proper divisors (1).

709620881 is an equidigital number, since it uses as much as digits as its factorization.

709620881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 709620881 is about 26638.7101977554. The cubic root of 709620881 is about 891.9533250092.

The spelling of 709620881 in words is "seven hundred nine million, six hundred twenty thousand, eight hundred eighty-one".