673676653 has 8 divisors (see below), whose sum is σ = 726272568. Its totient is φ = 621191424.

The previous prime is 673676621. The next prime is 673676677. The reversal of 673676653 is 356676376.

It can be written as a sum of positive squares in 4 ways, for example, as 82846404 + 590830249 = 9102^2 + 24307^2 .

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 673676653 - 2⁵ = 673676621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 673676597 and 673676606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673676603) 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, 14800 + ... + 39577.

It is an arithmetic number, because the mean of its divisors is an integer number (90784071).

Almost surely, 2^673676653 is an apocalyptic number.

It is an amenable number.

673676653 is a deficient number, since it is larger than the sum of its proper divisors (52595915).

673676653 is a wasteful number, since it uses less digits than its factorization.

673676653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55343.

The product of its digits is 2857680, while the sum is 49.

The square root of 673676653 is about 25955.2817938854. The cubic root of 673676653 is about 876.6316886358.

The spelling of 673676653 in words is "six hundred seventy-three million, six hundred seventy-six thousand, six hundred fifty-three".