673631187 has 8 divisors (see below), whose sum is σ = 945447360. Its totient is φ = 425451240.

The previous prime is 673631177. The next prime is 673631197. The reversal of 673631187 is 781136376.

673631187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (673631177) and next prime (673631197).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 673631187 - 2²³ = 665242579 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (673631117) 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, 5908989 + ... + 5909102.

It is an arithmetic number, because the mean of its divisors is an integer number (118180920).

Almost surely, 2^673631187 is an apocalyptic number.

673631187 is a deficient number, since it is larger than the sum of its proper divisors (271816173).

673631187 is a wasteful number, since it uses less digits than its factorization.

673631187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11818113.

The product of its digits is 127008, while the sum is 42.

The square root of 673631187 is about 25954.4059265474. The cubic root of 673631187 is about 876.6119670909.

The spelling of 673631187 in words is "six hundred seventy-three million, six hundred thirty-one thousand, one hundred eighty-seven".