673405976 has 16 divisors (see below), whose sum is σ = 1293432840. Its totient is φ = 328490560.

The previous prime is 673405973. The next prime is 673405981. The reversal of 673405976 is 679504376.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 673405976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673405973) 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 3 ways as a sum of consecutive naturals, for example, 1026206 + ... + 1026861.

Almost surely, 2^673405976 is an apocalyptic number.

It is an amenable number.

673405976 is a deficient number, since it is larger than the sum of its proper divisors (620026864).

673405976 is a wasteful number, since it uses less digits than its factorization.

673405976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053114 (or 2053110 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 47.

The square root of 673405976 is about 25950.0669748654. The cubic root of 673405976 is about 876.5142654273.

It can be divided in two parts, 67 and 3405976, that added together give a palindrome (3406043).

The spelling of 673405976 in words is "six hundred seventy-three million, four hundred five thousand, nine hundred seventy-six".