673898439 has 8 divisors (see below), whose sum is σ = 906483312. Its totient is φ = 445289600.

The previous prime is 673898437. The next prime is 673898443. The reversal of 673898439 is 934898376.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 673898439 - 2¹ = 673898437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673898431) 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, 993612 + ... + 994289.

It is an arithmetic number, because the mean of its divisors is an integer number (113310414).

Almost surely, 2^673898439 is an apocalyptic number.

673898439 is a deficient number, since it is larger than the sum of its proper divisors (232584873).

673898439 is a wasteful number, since it uses less digits than its factorization.

673898439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988017.

The product of its digits is 7838208, while the sum is 57.

The square root of 673898439 is about 25959.5539060285. The cubic root of 673898439 is about 876.7278788495.

The spelling of 673898439 in words is "six hundred seventy-three million, eight hundred ninety-eight thousand, four hundred thirty-nine".