731630163 has 64 divisors (see below), whose sum is σ = 1136185344. Its totient is φ = 414720000.

The previous prime is 731630147. The next prime is 731630167. The reversal of 731630163 is 361036137.

It is not a de Polignac number, because 731630163 - 2⁴ = 731630147 is a prime.

It is a super-2 number, since 2×731630163² = 1070565390822813138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 731630163.

It is not an unprimeable number, because it can be changed into a prime (731630167) 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 63 ways as a sum of consecutive naturals, for example, 7243813 + ... + 7243913.

It is an arithmetic number, because the mean of its divisors is an integer number (17752896).

Almost surely, 2^731630163 is an apocalyptic number.

731630163 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

731630163 is a deficient number, since it is larger than the sum of its proper divisors (404555181).

731630163 is a wasteful number, since it uses less digits than its factorization.

731630163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 731630163 is about 27048.6628689849. The cubic root of 731630163 is about 901.0810725097.

The spelling of 731630163 in words is "seven hundred thirty-one million, six hundred thirty thousand, one hundred sixty-three".