696969729 has 6 divisors (see below), whose sum is σ = 1006734066. Its totient is φ = 464646480.

The previous prime is 696969727. The next prime is 696969733. The reversal of 696969729 is 927969696.

It can be written as a sum of positive squares in only one way, i.e., 546858225 + 150111504 = 23385^2 + 12252^2 .

It is not a de Polignac number, because 696969729 - 2¹ = 696969727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (696969727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38720532 + ... + 38720549.

It is an arithmetic number, because the mean of its divisors is an integer number (167789011).

Almost surely, 2^696969729 is an apocalyptic number.

It is an amenable number.

696969729 is a deficient number, since it is larger than the sum of its proper divisors (309764337).

696969729 is a wasteful number, since it uses less digits than its factorization.

696969729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77441087 (or 77441084 counting only the distinct ones).

The product of its digits is 19840464, while the sum is 63.

The square root of 696969729 is about 26400.1842607206. The cubic root of 696969729 is about 886.6209152686.

The spelling of 696969729 in words is "six hundred ninety-six million, nine hundred sixty-nine thousand, seven hundred twenty-nine".