629431429 has 8 divisors (see below), whose sum is σ = 688068288. Its totient is φ = 571030560.

The previous prime is 629431427. The next prime is 629431441. The reversal of 629431429 is 924134926.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 629431429 - 2¹ = 629431427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 629431391 and 629431400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629431423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53392 + ... + 64105.

It is an arithmetic number, because the mean of its divisors is an integer number (86008536).

Almost surely, 2^629431429 is an apocalyptic number.

It is an amenable number.

629431429 is a deficient number, since it is larger than the sum of its proper divisors (58636859).

629431429 is a wasteful number, since it uses less digits than its factorization.

629431429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117995.

The product of its digits is 93312, while the sum is 40.

The square root of 629431429 is about 25088.4720339841. The cubic root of 629431429 is about 857.0039194736.

The spelling of 629431429 in words is "six hundred twenty-nine million, four hundred thirty-one thousand, four hundred twenty-nine".