630714521 has 8 divisors (see below), whose sum is σ = 647301984. Its totient is φ = 614184480.

The previous prime is 630714503. The next prime is 630714523. The reversal of 630714521 is 125417036.

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 630714521 - 2¹⁸ = 630452377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630714523) 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, 8366 + ... + 36488.

It is an arithmetic number, because the mean of its divisors is an integer number (80912748).

Almost surely, 2^630714521 is an apocalyptic number.

It is an amenable number.

630714521 is a deficient number, since it is larger than the sum of its proper divisors (16587463).

630714521 is a wasteful number, since it uses less digits than its factorization.

630714521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28711.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 630714521 is about 25114.0303615330. The cubic root of 630714521 is about 857.5858565899.

The spelling of 630714521 in words is "six hundred thirty million, seven hundred fourteen thousand, five hundred twenty-one".