673776293 has 4 divisors (see below), whose sum is σ = 684821868. Its totient is φ = 662730720.

The previous prime is 673776241. The next prime is 673776307. The reversal of 673776293 is 392677376.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173001409 + 500774884 = 13153^2 + 22378^2 .

It is a cyclic number.

It is not a de Polignac number, because 673776293 - 2¹⁶ = 673710757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673778293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5522696 + ... + 5522817.

It is an arithmetic number, because the mean of its divisors is an integer number (171205467).

Almost surely, 2^673776293 is an apocalyptic number.

It is an amenable number.

673776293 is a deficient number, since it is larger than the sum of its proper divisors (11045575).

673776293 is a wasteful number, since it uses less digits than its factorization.

673776293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11045574.

The product of its digits is 2000376, while the sum is 50.

The square root of 673776293 is about 25957.2011780931. The cubic root of 673776293 is about 876.6749058454.

The spelling of 673776293 in words is "six hundred seventy-three million, seven hundred seventy-six thousand, two hundred ninety-three".