696728839 has 2 divisors, whose sum is σ = 696728840. Its totient is φ = 696728838.

The previous prime is 696728821. The next prime is 696728861. The reversal of 696728839 is 938827696.

696728839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 696728839 - 2¹¹ = 696726791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696728819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348364419 + 348364420.

It is an arithmetic number, because the mean of its divisors is an integer number (348364420).

Almost surely, 2^696728839 is an apocalyptic number.

696728839 is a deficient number, since it is larger than the sum of its proper divisors (1).

696728839 is an equidigital number, since it uses as much as digits as its factorization.

696728839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 58.

The square root of 696728839 is about 26395.6215876800. The cubic root of 696728839 is about 886.5187574493.

The spelling of 696728839 in words is "six hundred ninety-six million, seven hundred twenty-eight thousand, eight hundred thirty-nine".