630489629 has 16 divisors (see below), whose sum is σ = 790788096. Its totient is φ = 488338800.

The previous prime is 630489623. The next prime is 630489649. The reversal of 630489629 is 926984036.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630489629 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 (630489623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11657 + ... + 37374.

It is an arithmetic number, because the mean of its divisors is an integer number (49424256).

Almost surely, 2^630489629 is an apocalyptic number.

It is an amenable number.

630489629 is a deficient number, since it is larger than the sum of its proper divisors (160298467).

630489629 is a wasteful number, since it uses less digits than its factorization.

630489629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49216.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 630489629 is about 25109.5525447986. The cubic root of 630489629 is about 857.4839155270.

The spelling of 630489629 in words is "six hundred thirty million, four hundred eighty-nine thousand, six hundred twenty-nine".