672513329 has 8 divisors (see below), whose sum is σ = 686451840. Its totient is φ = 658659600.

The previous prime is 672513311. The next prime is 672513367. The reversal of 672513329 is 923315276.

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 672513329 - 2²⁸ = 404077873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 672513292 and 672513301.

It is not an unprimeable number, because it can be changed into a prime (672513029) 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, 5042 + ... + 37019.

It is an arithmetic number, because the mean of its divisors is an integer number (85806480).

Almost surely, 2^672513329 is an apocalyptic number.

It is an amenable number.

672513329 is a deficient number, since it is larger than the sum of its proper divisors (13938511).

672513329 is a wasteful number, since it uses less digits than its factorization.

672513329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42391.

The product of its digits is 68040, while the sum is 38.

The square root of 672513329 is about 25932.8619515857. The cubic root of 672513329 is about 876.1268003969.

The spelling of 672513329 in words is "six hundred seventy-two million, five hundred thirteen thousand, three hundred twenty-nine".