696722687 has 2 divisors, whose sum is σ = 696722688. Its totient is φ = 696722686.

The previous prime is 696722671. The next prime is 696722699. The reversal of 696722687 is 786227696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 696722687 - 2⁴ = 696722671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696722287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348361343 + 348361344.

It is an arithmetic number, because the mean of its divisors is an integer number (348361344).

Almost surely, 2^696722687 is an apocalyptic number.

696722687 is a deficient number, since it is larger than the sum of its proper divisors (1).

696722687 is an equidigital number, since it uses as much as digits as its factorization.

696722687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 53.

The square root of 696722687 is about 26395.5050529441. The cubic root of 696722687 is about 886.5161481704.

The spelling of 696722687 in words is "six hundred ninety-six million, seven hundred twenty-two thousand, six hundred eighty-seven".