671401343 has 2 divisors, whose sum is σ = 671401344. Its totient is φ = 671401342.

The previous prime is 671401273. The next prime is 671401361. The reversal of 671401343 is 343104176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671401343 - 2¹⁰ = 671400319 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671401373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335700671 + 335700672.

It is an arithmetic number, because the mean of its divisors is an integer number (335700672).

Almost surely, 2^671401343 is an apocalyptic number.

671401343 is a deficient number, since it is larger than the sum of its proper divisors (1).

671401343 is an equidigital number, since it uses as much as digits as its factorization.

671401343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 671401343 is about 25911.4133732608. The cubic root of 671401343 is about 875.6436485396.

The spelling of 671401343 in words is "six hundred seventy-one million, four hundred one thousand, three hundred forty-three".