630509929 has 4 divisors (see below), whose sum is σ = 720582784. Its totient is φ = 540437076.

The previous prime is 630509921. The next prime is 630509941. The reversal of 630509929 is 929905036.

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 630509929 - 2³ = 630509921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630509921) 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, 45036417 + ... + 45036430.

It is an arithmetic number, because the mean of its divisors is an integer number (180145696).

Almost surely, 2^630509929 is an apocalyptic number.

It is an amenable number.

630509929 is a deficient number, since it is larger than the sum of its proper divisors (90072855).

630509929 is an equidigital number, since it uses as much as digits as its factorization.

630509929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90072854.

The product of its (nonzero) digits is 131220, while the sum is 43.

The square root of 630509929 is about 25109.9567701739. The cubic root of 630509929 is about 857.4931182883.

The spelling of 630509929 in words is "six hundred thirty million, five hundred nine thousand, nine hundred twenty-nine".