421174667 has 2 divisors, whose sum is σ = 421174668. Its totient is φ = 421174666.

The previous prime is 421174651. The next prime is 421174669. The reversal of 421174667 is 766471124.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421174667 - 2⁴ = 421174651 is a prime.

Together with 421174669, it forms a pair of twin primes.

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 421174667.

It is not a weakly prime, because it can be changed into another prime (421174669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210587333 + 210587334.

It is an arithmetic number, because the mean of its divisors is an integer number (210587334).

Almost surely, 2^421174667 is an apocalyptic number.

421174667 is a deficient number, since it is larger than the sum of its proper divisors (1).

421174667 is an equidigital number, since it uses as much as digits as its factorization.

421174667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 421174667 is about 20522.5404616485. The cubic root of 421174667 is about 749.5847579930.

The spelling of 421174667 in words is "four hundred twenty-one million, one hundred seventy-four thousand, six hundred sixty-seven".