630945361 has 8 divisors (see below), whose sum is σ = 697106304. Its totient is φ = 568011840.

The previous prime is 630945353. The next prime is 630945377. The reversal of 630945361 is 163549036.

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 630945361 - 2³ = 630945353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 630945361.

It is not an unprimeable number, because it can be changed into a prime (630943361) 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, 806445 + ... + 807226.

It is an arithmetic number, because the mean of its divisors is an integer number (87138288).

Almost surely, 2^630945361 is an apocalyptic number.

It is an amenable number.

630945361 is a deficient number, since it is larger than the sum of its proper divisors (66160943).

630945361 is a wasteful number, since it uses less digits than its factorization.

630945361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613711.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 630945361 is about 25118.6257784935. The cubic root of 630945361 is about 857.6904686164.

The spelling of 630945361 in words is "six hundred thirty million, nine hundred forty-five thousand, three hundred sixty-one".