673678079 has 4 divisors (see below), whose sum is σ = 709134840. Its totient is φ = 638221320.

The previous prime is 673678069. The next prime is 673678121. The reversal of 673678079 is 970876376.

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

It is a cyclic number.

It is not a de Polignac number, because 673678079 - 2⁴ = 673678063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673678079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673678069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17728352 + ... + 17728389.

It is an arithmetic number, because the mean of its divisors is an integer number (177283710).

Almost surely, 2^673678079 is an apocalyptic number.

673678079 is a deficient number, since it is larger than the sum of its proper divisors (35456761).

673678079 is a wasteful number, since it uses less digits than its factorization.

673678079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35456760.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The square root of 673678079 is about 25955.3092641949. The cubic root of 673678079 is about 876.6323071699.

The spelling of 673678079 in words is "six hundred seventy-three million, six hundred seventy-eight thousand, seventy-nine".