696945789 has 10 divisors (see below), whose sum is σ = 1041116670. Its totient is φ = 464630472.

The previous prime is 696945779. The next prime is 696945797. The reversal of 696945789 is 987549696.

It is a happy number.

696945789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 486202500 + 210743289 = 22050^2 + 14517^2 .

It is not a de Polignac number, because 696945789 - 2⁴ = 696945773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696945709) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4302054 + ... + 4302215.

It is an arithmetic number, because the mean of its divisors is an integer number (104111667).

Almost surely, 2^696945789 is an apocalyptic number.

It is an amenable number.

696945789 is a deficient number, since it is larger than the sum of its proper divisors (344170881).

696945789 is an equidigital number, since it uses as much as digits as its factorization.

696945789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604281 (or 8604272 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 696945789 is about 26399.7308509007. The cubic root of 696945789 is about 886.6107637288.

The spelling of 696945789 in words is "six hundred ninety-six million, nine hundred forty-five thousand, seven hundred eighty-nine".