673663501 has 8 divisors (see below), whose sum is σ = 771020864. Its totient is φ = 576586080.

The previous prime is 673663481. The next prime is 673663513. The reversal of 673663501 is 105366376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 673663501 - 2⁹ = 673662989 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 (673663531) 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, 64800 + ... + 74473.

It is an arithmetic number, because the mean of its divisors is an integer number (96377608).

Almost surely, 2^673663501 is an apocalyptic number.

It is an amenable number.

673663501 is a deficient number, since it is larger than the sum of its proper divisors (97357363).

673663501 is a wasteful number, since it uses less digits than its factorization.

673663501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139971.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 673663501 is about 25955.0284338122. The cubic root of 673663501 is about 876.6259838539.

The spelling of 673663501 in words is "six hundred seventy-three million, six hundred sixty-three thousand, five hundred one".