629897597 has 6 divisors (see below), whose sum is σ = 732738078. Its totient is φ = 539912184.

The previous prime is 629897591. The next prime is 629897623. The reversal of 629897597 is 795798926.

It can be written as a sum of positive squares in only one way, i.e., 477597316 + 152300281 = 21854^2 + 12341^2 .

It is not a de Polignac number, because 629897597 - 2⁴ = 629897581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629897591) 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, 6427478 + ... + 6427575.

It is an arithmetic number, because the mean of its divisors is an integer number (122123013).

Almost surely, 2^629897597 is an apocalyptic number.

It is an amenable number.

629897597 is a deficient number, since it is larger than the sum of its proper divisors (102840481).

629897597 is a wasteful number, since it uses less digits than its factorization.

629897597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12855067 (or 12855060 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 62.

The square root of 629897597 is about 25097.7607965332. The cubic root of 629897597 is about 857.2154379954.

The spelling of 629897597 in words is "six hundred twenty-nine million, eight hundred ninety-seven thousand, five hundred ninety-seven".