671282973 has 6 divisors (see below), whose sum is σ = 969630974. Its totient is φ = 447521976.

The previous prime is 671282929. The next prime is 671283031. The reversal of 671282973 is 379282176.

It can be written as a sum of positive squares in only one way, i.e., 420947289 + 250335684 = 20517^2 + 15822^2 .

It is not a de Polignac number, because 671282973 - 2¹² = 671278877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671282903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37293490 + ... + 37293507.

Almost surely, 2^671282973 is an apocalyptic number.

It is an amenable number.

671282973 is a deficient number, since it is larger than the sum of its proper divisors (298348001).

671282973 is a wasteful number, since it uses less digits than its factorization.

671282973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74587003 (or 74587000 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 671282973 is about 25909.1291439909. The cubic root of 671282973 is about 875.5921860119.

The spelling of 671282973 in words is "six hundred seventy-one million, two hundred eighty-two thousand, nine hundred seventy-three".