629664395 has 4 divisors (see below), whose sum is σ = 755597280. Its totient is φ = 503731512.

The previous prime is 629664379. The next prime is 629664397. The reversal of 629664395 is 593466926.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 629664395 - 2⁴ = 629664379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (629664397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62966435 + ... + 62966444.

It is an arithmetic number, because the mean of its divisors is an integer number (188899320).

Almost surely, 2^629664395 is an apocalyptic number.

629664395 is a deficient number, since it is larger than the sum of its proper divisors (125932885).

629664395 is a wasteful number, since it uses less digits than its factorization.

629664395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125932884.

The product of its digits is 2099520, while the sum is 50.

The square root of 629664395 is about 25093.1144938208. The cubic root of 629664395 is about 857.1096382430.

The spelling of 629664395 in words is "six hundred twenty-nine million, six hundred sixty-four thousand, three hundred ninety-five".