629429901 has 4 divisors (see below), whose sum is σ = 839239872. Its totient is φ = 419619932.

The previous prime is 629429897. The next prime is 629429917. The reversal of 629429901 is 109924926.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 629429901 - 2² = 629429897 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629429971) 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 3 ways as a sum of consecutive naturals, for example, 104904981 + ... + 104904986.

It is an arithmetic number, because the mean of its divisors is an integer number (209809968).

Almost surely, 2^629429901 is an apocalyptic number.

It is an amenable number.

629429901 is a deficient number, since it is larger than the sum of its proper divisors (209809971).

629429901 is a wasteful number, since it uses less digits than its factorization.

629429901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209809970.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 629429901 is about 25088.4415817324. The cubic root of 629429901 is about 857.0032259890.

The spelling of 629429901 in words is "six hundred twenty-nine million, four hundred twenty-nine thousand, nine hundred one".