631760945 has 8 divisors (see below), whose sum is σ = 775743936. Its totient is φ = 493654896.

The previous prime is 631760933. The next prime is 631760947. The reversal of 631760945 is 549067136.

631760945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 631760945 - 2⁴ = 631760929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (631760947) 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, 1468997 + ... + 1469426.

It is an arithmetic number, because the mean of its divisors is an integer number (96967992).

Almost surely, 2^631760945 is an apocalyptic number.

It is an amenable number.

631760945 is a deficient number, since it is larger than the sum of its proper divisors (143982991).

631760945 is a wasteful number, since it uses less digits than its factorization.

631760945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938471.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 631760945 is about 25134.8551815999. The cubic root of 631760945 is about 858.0598706146.

The spelling of 631760945 in words is "six hundred thirty-one million, seven hundred sixty thousand, nine hundred forty-five".