673173523 has 8 divisors (see below), whose sum is σ = 754219440. Its totient is φ = 595435680.

The previous prime is 673173503. The next prime is 673173541. The reversal of 673173523 is 325371376.

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 673173523 - 2²⁵ = 639619091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673173503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826588 + ... + 827401.

It is an arithmetic number, because the mean of its divisors is an integer number (94277430).

Almost surely, 2^673173523 is an apocalyptic number.

673173523 is the 13869-th centered heptagonal number.

673173523 is a deficient number, since it is larger than the sum of its proper divisors (81045917).

673173523 is a wasteful number, since it uses less digits than its factorization.

673173523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654037.

The product of its digits is 79380, while the sum is 37.

The square root of 673173523 is about 25945.5877366461. The cubic root of 673173523 is about 876.4133991712.

The spelling of 673173523 in words is "six hundred seventy-three million, one hundred seventy-three thousand, five hundred twenty-three".