631629498 has 16 divisors (see below), whose sum is σ = 1263602880. Its totient is φ = 210485856.

The previous prime is 631629497. The next prime is 631629503. The reversal of 631629498 is 894926136.

It is not an unprimeable number, because it can be changed into a prime (631629497) 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 7 ways as a sum of consecutive naturals, for example, 13798 + ... + 38126.

It is an arithmetic number, because the mean of its divisors is an integer number (78975180).

Almost surely, 2^631629498 is an apocalyptic number.

631629498 is an abundant number, since it is smaller than the sum of its proper divisors (631973382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631629498 is a wasteful number, since it uses less digits than its factorization.

631629498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28661.

The product of its digits is 559872, while the sum is 48.

The square root of 631629498 is about 25132.2402105344. The cubic root of 631629498 is about 858.0003558988. Note that the first 3 decimals are identical.

The spelling of 631629498 in words is "six hundred thirty-one million, six hundred twenty-nine thousand, four hundred ninety-eight".