629520397 has 16 divisors (see below), whose sum is σ = 708648192. Its totient is φ = 554296320.

The previous prime is 629520377. The next prime is 629520413. The reversal of 629520397 is 793025926.

It is a cyclic number.

It is not a de Polignac number, because 629520397 - 2²³ = 621131789 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 (629520337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43873 + ... + 56425.

It is an arithmetic number, because the mean of its divisors is an integer number (44290512).

Almost surely, 2^629520397 is an apocalyptic number.

It is an amenable number.

629520397 is a deficient number, since it is larger than the sum of its proper divisors (79127795).

629520397 is a wasteful number, since it uses less digits than its factorization.

629520397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12708.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 629520397 is about 25090.2450565952. The cubic root of 629520397 is about 857.0442957715.

The spelling of 629520397 in words is "six hundred twenty-nine million, five hundred twenty thousand, three hundred ninety-seven".