671414911 has 2 divisors, whose sum is σ = 671414912. Its totient is φ = 671414910.

The previous prime is 671414869. The next prime is 671414921. The reversal of 671414911 is 119414176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671414911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671414921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335707455 + 335707456.

It is an arithmetic number, because the mean of its divisors is an integer number (335707456).

Almost surely, 2^671414911 is an apocalyptic number.

671414911 is a deficient number, since it is larger than the sum of its proper divisors (1).

671414911 is an equidigital number, since it uses as much as digits as its factorization.

671414911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 34.

The square root of 671414911 is about 25911.6751870658. The cubic root of 671414911 is about 875.6495469753.

The spelling of 671414911 in words is "six hundred seventy-one million, four hundred fourteen thousand, nine hundred eleven".