631748005 has 16 divisors (see below), whose sum is σ = 911998080. Its totient is φ = 410398272.

The previous prime is 631748003. The next prime is 631748011. The reversal of 631748005 is 500847136.

It is a cyclic number.

It is not a de Polignac number, because 631748005 - 2¹ = 631748003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631748003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474334 + ... + 475663.

It is an arithmetic number, because the mean of its divisors is an integer number (56999880).

Almost surely, 2^631748005 is an apocalyptic number.

It is an amenable number.

631748005 is a deficient number, since it is larger than the sum of its proper divisors (280250075).

631748005 is a wasteful number, since it uses less digits than its factorization.

631748005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950028.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 631748005 is about 25134.5977688126. The cubic root of 631748005 is about 858.0540121905.

The spelling of 631748005 in words is "six hundred thirty-one million, seven hundred forty-eight thousand, five".