696868289 has 12 divisors (see below), whose sum is σ = 780623100. Its totient is φ = 621077184.

The previous prime is 696868279. The next prime is 696868303. The reversal of 696868289 is 982868696.

It can be written as a sum of positive squares in 6 ways, for example, as 316306225 + 380562064 = 17785^2 + 19508^2 .

It is not a de Polignac number, because 696868289 - 2⁸ = 696868033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696868219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66194 + ... + 75995.

It is an arithmetic number, because the mean of its divisors is an integer number (65051925).

Almost surely, 2^696868289 is an apocalyptic number.

It is an amenable number.

696868289 is a deficient number, since it is larger than the sum of its proper divisors (83754811).

696868289 is a wasteful number, since it uses less digits than its factorization.

696868289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142244 (or 142231 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 62.

The square root of 696868289 is about 26398.2629920986. The cubic root of 696868289 is about 886.5778989626.

It can be divided in two parts, 6968 and 68289, that added together give a palindrome (75257).

The spelling of 696868289 in words is "six hundred ninety-six million, eight hundred sixty-eight thousand, two hundred eighty-nine".