630663605 has 16 divisors (see below), whose sum is σ = 889104384. Its totient is φ = 423382080.

The previous prime is 630663587. The next prime is 630663619. The reversal of 630663605 is 506366036.

It is not a de Polignac number, because 630663605 - 2¹⁰ = 630662581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440309 + ... + 441738.

It is an arithmetic number, because the mean of its divisors is an integer number (55569024).

Almost surely, 2^630663605 is an apocalyptic number.

630663605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

630663605 is a deficient number, since it is larger than the sum of its proper divisors (258440779).

630663605 is a wasteful number, since it uses less digits than its factorization.

630663605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882076.

The product of its (nonzero) digits is 58320, while the sum is 35.

The square root of 630663605 is about 25113.0166447601. The cubic root of 630663605 is about 857.5627790511.

The spelling of 630663605 in words is "six hundred thirty million, six hundred sixty-three thousand, six hundred five".