673857379 has 24 divisors (see below), whose sum is σ = 751578912. Its totient is φ = 600445440.

The previous prime is 673857347. The next prime is 673857383. The reversal of 673857379 is 973758376.

673857379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 673857379 - 2⁵ = 673857347 is a prime.

It is a Duffinian number.

Its product of digits (6667920) is a multiple of the sum of its prime divisors (294).

It is not an unprimeable number, because it can be changed into a prime (673857479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4918599 + ... + 4918735.

It is an arithmetic number, because the mean of its divisors is an integer number (31315788).

Almost surely, 2^673857379 is an apocalyptic number.

673857379 is a deficient number, since it is larger than the sum of its proper divisors (77721533).

673857379 is a wasteful number, since it uses less digits than its factorization.

673857379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 294 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 55.

The square root of 673857379 is about 25958.7630483427. The cubic root of 673857379 is about 876.7100724186.

The spelling of 673857379 in words is "six hundred seventy-three million, eight hundred fifty-seven thousand, three hundred seventy-nine".