673512513 has 8 divisors (see below), whose sum is σ = 945280800. Its totient is φ = 425376288.

The previous prime is 673512509. The next prime is 673512523. The reversal of 673512513 is 315215376.

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

It is not a de Polignac number, because 673512513 - 2² = 673512509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (673512523) 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, 5907948 + ... + 5908061.

It is an arithmetic number, because the mean of its divisors is an integer number (118160100).

Almost surely, 2^673512513 is an apocalyptic number.

It is an amenable number.

673512513 is a deficient number, since it is larger than the sum of its proper divisors (271768287).

673512513 is a wasteful number, since it uses less digits than its factorization.

673512513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11816031.

The product of its digits is 18900, while the sum is 33.

The square root of 673512513 is about 25952.1196244160. The cubic root of 673512513 is about 876.5604863201.

Adding to 673512513 its reverse (315215376), we get a palindrome (988727889).

The spelling of 673512513 in words is "six hundred seventy-three million, five hundred twelve thousand, five hundred thirteen".