630245673 has 6 divisors (see below), whose sum is σ = 910354874. Its totient is φ = 420163776.

The previous prime is 630245639. The next prime is 630245683. The reversal of 630245673 is 376542036.

It can be written as a sum of positive squares in only one way, i.e., 616429584 + 13816089 = 24828^2 + 3717^2 .

It is not a de Polignac number, because 630245673 - 2¹⁴ = 630229289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630245633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35013640 + ... + 35013657.

Almost surely, 2^630245673 is an apocalyptic number.

It is an amenable number.

630245673 is a deficient number, since it is larger than the sum of its proper divisors (280109201).

630245673 is a wasteful number, since it uses less digits than its factorization.

630245673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70027303 (or 70027300 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 630245673 is about 25104.6942423125. The cubic root of 630245673 is about 857.3733055488.

The spelling of 630245673 in words is "six hundred thirty million, two hundred forty-five thousand, six hundred seventy-three".