673664461 has 8 divisors (see below), whose sum is σ = 697485600. Its totient is φ = 649882800.

The previous prime is 673664447. The next prime is 673664477. The reversal of 673664461 is 164466376.

673664461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 673664461 - 2¹⁷ = 673533389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673664861) 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, 27286 + ... + 45736.

It is an arithmetic number, because the mean of its divisors is an integer number (87185700).

Almost surely, 2^673664461 is an apocalyptic number.

It is an amenable number.

673664461 is a deficient number, since it is larger than the sum of its proper divisors (23821139).

673664461 is a wasteful number, since it uses less digits than its factorization.

673664461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19739.

The product of its digits is 435456, while the sum is 43.

The square root of 673664461 is about 25955.0469273319. The cubic root of 673664461 is about 876.6264002639.

The spelling of 673664461 in words is "six hundred seventy-three million, six hundred sixty-four thousand, four hundred sixty-one".