673991205 has 8 divisors (see below), whose sum is σ = 1078385952. Its totient is φ = 359461968.

The previous prime is 673991203. The next prime is 673991207. The reversal of 673991205 is 502199376.

It is an interprime number because it is at equal distance from previous prime (673991203) and next prime (673991207).

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

It is not a de Polignac number, because 673991205 - 2¹ = 673991203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673991203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22466359 + ... + 22466388.

It is an arithmetic number, because the mean of its divisors is an integer number (134798244).

Almost surely, 2^673991205 is an apocalyptic number.

It is an amenable number.

673991205 is a deficient number, since it is larger than the sum of its proper divisors (404394747).

673991205 is a wasteful number, since it uses less digits than its factorization.

673991205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44932755.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 673991205 is about 25961.3405855707. The cubic root of 673991205 is about 876.7681058837.

The spelling of 673991205 in words is "six hundred seventy-three million, nine hundred ninety-one thousand, two hundred five".