673039249 has 3 divisors (see below), whose sum is σ = 673065193. Its totient is φ = 673013306.

The previous prime is 673039247. The next prime is 673039259. The reversal of 673039249 is 942930376.

The square root of 673039249 is 25943.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 673039249 - 2¹ = 673039247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673039243) 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 2 ways as a sum of consecutive naturals, for example, 12972 + ... + 38914.

Almost surely, 2^673039249 is an apocalyptic number.

673039249 is the 25943-rd square number.

673039249 is the 12972-nd centered octagonal number.

It is an amenable number.

673039249 is a deficient number, since it is larger than the sum of its proper divisors (25944).

673039249 is an frugal number, since it uses more digits than its factorization.

673039249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51886 (or 25943 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The cubic root of 673039249 is about 876.3551242718.

The spelling of 673039249 in words is "six hundred seventy-three million, thirty-nine thousand, two hundred forty-nine".