671039461 has 2 divisors, whose sum is σ = 671039462. Its totient is φ = 671039460.

The previous prime is 671039443. The next prime is 671039483. The reversal of 671039461 is 164930176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670499236 + 540225 = 25894^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 671039461 - 2⁵ = 671039429 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671039461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671039491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335519730 + 335519731.

It is an arithmetic number, because the mean of its divisors is an integer number (335519731).

Almost surely, 2^671039461 is an apocalyptic number.

It is an amenable number.

671039461 is a deficient number, since it is larger than the sum of its proper divisors (1).

671039461 is an equidigital number, since it uses as much as digits as its factorization.

671039461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 671039461 is about 25904.4293702834. The cubic root of 671039461 is about 875.4862977352.

The spelling of 671039461 in words is "six hundred seventy-one million, thirty-nine thousand, four hundred sixty-one".