696379121 has 2 divisors, whose sum is σ = 696379122. Its totient is φ = 696379120.

The previous prime is 696379093. The next prime is 696379157. The reversal of 696379121 is 121973696.

696379121 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 can be written as a sum of positive squares in only one way, i.e., 695904400 + 474721 = 26380^2 + 689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-696379121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (696379421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348189560 + 348189561.

It is an arithmetic number, because the mean of its divisors is an integer number (348189561).

Almost surely, 2^696379121 is an apocalyptic number.

It is an amenable number.

696379121 is a deficient number, since it is larger than the sum of its proper divisors (1).

696379121 is an equidigital number, since it uses as much as digits as its factorization.

696379121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 696379121 is about 26388.9962105420. The cubic root of 696379121 is about 886.3704053996.

The spelling of 696379121 in words is "six hundred ninety-six million, three hundred seventy-nine thousand, one hundred twenty-one".