680273493 has 8 divisors (see below), whose sum is σ = 909401088. Its totient is φ = 452330784.

The previous prime is 680273449. The next prime is 680273501. The reversal of 680273493 is 394372086.

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

It is not a de Polignac number, because 680273493 - 2¹⁰ = 680272469 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 (680273423) 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, 294880 + ... + 297177.

It is an arithmetic number, because the mean of its divisors is an integer number (113675136).

Almost surely, 2^680273493 is an apocalyptic number.

It is an amenable number.

680273493 is a deficient number, since it is larger than the sum of its proper divisors (229127595).

680273493 is a wasteful number, since it uses less digits than its factorization.

680273493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592443.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 680273493 is about 26082.0530825317. The cubic root of 680273493 is about 879.4838109963.

The spelling of 680273493 in words is "six hundred eighty million, two hundred seventy-three thousand, four hundred ninety-three".