630448737 has 4 divisors (see below), whose sum is σ = 840598320. Its totient is φ = 420299156.

The previous prime is 630448717. The next prime is 630448739. The reversal of 630448737 is 737844036.

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 630448737 - 2⁶ = 630448673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630448739) 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, 105074787 + ... + 105074792.

It is an arithmetic number, because the mean of its divisors is an integer number (210149580).

Almost surely, 2^630448737 is an apocalyptic number.

It is an amenable number.

630448737 is a deficient number, since it is larger than the sum of its proper divisors (210149583).

630448737 is a wasteful number, since it uses less digits than its factorization.

630448737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210149582.

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 630448737 is about 25108.7382598170. The cubic root of 630448737 is about 857.4653770300.

The spelling of 630448737 in words is "six hundred thirty million, four hundred forty-eight thousand, seven hundred thirty-seven".