673386685 has 8 divisors (see below), whose sum is σ = 808867800. Its totient is φ = 538173504.

The previous prime is 673386673. The next prime is 673386689. The reversal of 673386685 is 586683376.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 673246809 = 374^2 + 25947^2 .

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 673386685 - 2⁵ = 673386653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673386689) 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, 61410 + ... + 71539.

It is an arithmetic number, because the mean of its divisors is an integer number (101108475).

Almost surely, 2^673386685 is an apocalyptic number.

It is an amenable number.

673386685 is a deficient number, since it is larger than the sum of its proper divisors (135481115).

673386685 is a wasteful number, since it uses less digits than its factorization.

673386685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133967.

The product of its digits is 4354560, while the sum is 52.

The square root of 673386685 is about 25949.6952775943. The cubic root of 673386685 is about 876.5058955391.

The spelling of 673386685 in words is "six hundred seventy-three million, three hundred eighty-six thousand, six hundred eighty-five".