419172673 has 2 divisors, whose sum is σ = 419172674. Its totient is φ = 419172672.

The previous prime is 419172671. The next prime is 419172679. The reversal of 419172673 is 376271914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360696064 + 58476609 = 18992^2 + 7647^2 .

It is a cyclic number.

It is not a de Polignac number, because 419172673 - 2¹ = 419172671 is a prime.

Together with 419172671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (419172671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209586336 + 209586337.

It is an arithmetic number, because the mean of its divisors is an integer number (209586337).

Almost surely, 2^419172673 is an apocalyptic number.

It is an amenable number.

419172673 is a deficient number, since it is larger than the sum of its proper divisors (1).

419172673 is an equidigital number, since it uses as much as digits as its factorization.

419172673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 419172673 is about 20473.7068700321. The cubic root of 419172673 is about 748.3951895977.

The spelling of 419172673 in words is "four hundred nineteen million, one hundred seventy-two thousand, six hundred seventy-three".