630861613 has 8 divisors (see below), whose sum is σ = 633355200. Its totient is φ = 628373760.

The previous prime is 630861611. The next prime is 630861631. The reversal of 630861613 is 316168036.

It is a happy number.

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 630861613 - 2¹ = 630861611 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 (630861611) 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, 435256 + ... + 436702.

It is an arithmetic number, because the mean of its divisors is an integer number (79169400).

Almost surely, 2^630861613 is an apocalyptic number.

It is an amenable number.

630861613 is a deficient number, since it is larger than the sum of its proper divisors (2493587).

630861613 is a wasteful number, since it uses less digits than its factorization.

630861613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 630861613 is about 25116.9586733744. The cubic root of 630861613 is about 857.6525186638.

The spelling of 630861613 in words is "six hundred thirty million, eight hundred sixty-one thousand, six hundred thirteen".