419172671 has 2 divisors, whose sum is σ = 419172672. Its totient is φ = 419172670.

The previous prime is 419172619. The next prime is 419172673. The reversal of 419172671 is 176271914.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 419172671 - 2²² = 414978367 is a prime.

It is a super-2 number, since 2×419172671² = 351411456226548482, which contains 22 as substring.

Together with 419172673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419172673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209586335 + 209586336.

It is an arithmetic number, because the mean of its divisors is an integer number (209586336).

Almost surely, 2^419172671 is an apocalyptic number.

419172671 is a deficient number, since it is larger than the sum of its proper divisors (1).

419172671 is an equidigital number, since it uses as much as digits as its factorization.

419172671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 419172671 is about 20473.7068211890. The cubic root of 419172671 is about 748.3951884074.

The spelling of 419172671 in words is "four hundred nineteen million, one hundred seventy-two thousand, six hundred seventy-one".