6630129 has 24 divisors (see below), whose sum is σ = 10531872. Its totient is φ = 3985920.

The previous prime is 6630121. The next prime is 6630131. The reversal of 6630129 is 9210366.

It is a happy number.

6630129 is a `hidden beast` number, since 6 + 630 + 1 + 29 = 666.

It is not a de Polignac number, because 6630129 - 2³ = 6630121 is a prime.

It is a super-2 number, since 2×6630129² = 87917221113282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6630121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18934 + ... + 19280.

It is an arithmetic number, because the mean of its divisors is an integer number (438828).

Almost surely, 2^6630129 is an apocalyptic number.

It is an amenable number.

6630129 is a deficient number, since it is larger than the sum of its proper divisors (3901743).

6630129 is a wasteful number, since it uses less digits than its factorization.

6630129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 6630129 is about 2574.9036875192. The cubic root of 6630129 is about 187.8627431071.

The spelling of 6630129 in words is "six million, six hundred thirty thousand, one hundred twenty-nine".