630367213 has 12 divisors (see below), whose sum is σ = 747122940. Its totient is φ = 530117952.

The previous prime is 630367211. The next prime is 630367217. The reversal of 630367213 is 312763036.

It can be written as a sum of positive squares in 2 ways, for example, as 364122724 + 266244489 = 19082^2 + 16317^2 .

It is not a de Polignac number, because 630367213 - 2¹ = 630367211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630367211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118768 + ... + 123961.

It is an arithmetic number, because the mean of its divisors is an integer number (62260245).

Almost surely, 2^630367213 is an apocalyptic number.

It is an amenable number.

630367213 is a deficient number, since it is larger than the sum of its proper divisors (116755727).

630367213 is a wasteful number, since it uses less digits than its factorization.

630367213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242796 (or 242789 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 630367213 is about 25107.1147884419. The cubic root of 630367213 is about 857.4284155153.

The spelling of 630367213 in words is "six hundred thirty million, three hundred sixty-seven thousand, two hundred thirteen".