629659049 has 4 divisors (see below), whose sum is σ = 651371460. Its totient is φ = 607946640.

The previous prime is 629658919. The next prime is 629659067. The reversal of 629659049 is 940956926.

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

It can be written as a sum of positive squares in 2 ways, for example, as 329676649 + 299982400 = 18157^2 + 17320^2 .

It is a cyclic number.

It is not a de Polignac number, because 629659049 - 2⁸ = 629658793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 629658988 and 629659006.

It is not an unprimeable number, because it can be changed into a prime (629659949) 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, 10856162 + ... + 10856219.

It is an arithmetic number, because the mean of its divisors is an integer number (162842865).

Almost surely, 2^629659049 is an apocalyptic number.

It is an amenable number.

629659049 is a deficient number, since it is larger than the sum of its proper divisors (21712411).

629659049 is a wasteful number, since it uses less digits than its factorization.

629659049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21712410.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The square root of 629659049 is about 25093.0079703490. The cubic root of 629659049 is about 857.1072125482.

The spelling of 629659049 in words is "six hundred twenty-nine million, six hundred fifty-nine thousand, forty-nine".