1673631163 has 4 divisors (see below), whose sum is σ = 1674331200. Its totient is φ = 1672931128.

The previous prime is 1673631143. The next prime is 1673631187. The reversal of 1673631163 is 3611363761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1673631163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673631143) 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 3 ways as a sum of consecutive naturals, for example, 346420 + ... + 351217.

It is an arithmetic number, because the mean of its divisors is an integer number (418582800).

Almost surely, 2^1673631163 is an apocalyptic number.

1673631163 is a deficient number, since it is larger than the sum of its proper divisors (700037).

1673631163 is an equidigital number, since it uses as much as digits as its factorization.

1673631163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700036.

The product of its digits is 40824, while the sum is 37.

The square root of 1673631163 is about 40910.0374358176. The cubic root of 1673631163 is about 1187.2802711899.

The spelling of 1673631163 in words is "one billion, six hundred seventy-three million, six hundred thirty-one thousand, one hundred sixty-three".