680473 has 4 divisors (see below), whose sum is σ = 682420. Its totient is φ = 678528.

The previous prime is 680453. The next prime is 680489. The reversal of 680473 is 374086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374086 = 2 ⋅187043.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 304704 = 613^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 680473 - 2⁵ = 680441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680443) 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, 288 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (170605).

2⁶⁸⁰⁴⁷³ is an apocalyptic number.

It is an amenable number.

680473 is a deficient number, since it is larger than the sum of its proper divisors (1947).

680473 is a wasteful number, since it uses less digits than its factorization.

680473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 680473 is about 824.9078736441. The cubic root of 680473 is about 87.9569779374.

The spelling of 680473 in words is "six hundred eighty thousand, four hundred seventy-three".