630563421 has 8 divisors (see below), whose sum is σ = 858639744. Its totient is φ = 411431360.

The previous prime is 630563413. The next prime is 630563441. The reversal of 630563421 is 124365036.

630563421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 630563421 - 2³ = 630563413 is a prime.

It is a super-2 number, since 2×630563421² = 795220455806446482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630563411) 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, 2235900 + ... + 2236181.

It is an arithmetic number, because the mean of its divisors is an integer number (107329968).

Almost surely, 2^630563421 is an apocalyptic number.

It is an amenable number.

630563421 is a deficient number, since it is larger than the sum of its proper divisors (228076323).

630563421 is a wasteful number, since it uses less digits than its factorization.

630563421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472131.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 630563421 is about 25111.0219027422. The cubic root of 630563421 is about 857.5173672984.

The spelling of 630563421 in words is "six hundred thirty million, five hundred sixty-three thousand, four hundred twenty-one".