421613171 has 16 divisors (see below), whose sum is σ = 493108224. Its totient is φ = 352966464.

The previous prime is 421613149. The next prime is 421613177. The reversal of 421613171 is 171316124.

It is a cyclic number.

It is not a de Polignac number, because 421613171 - 2¹⁸ = 421351027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421613171.

It is not an unprimeable number, because it can be changed into a prime (421613177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210551 + ... + 212543.

It is an arithmetic number, because the mean of its divisors is an integer number (30819264).

Almost surely, 2^421613171 is an apocalyptic number.

421613171 is a deficient number, since it is larger than the sum of its proper divisors (71495053).

421613171 is a wasteful number, since it uses less digits than its factorization.

421613171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690.

The product of its digits is 1008, while the sum is 26.

The square root of 421613171 is about 20533.2211549966. The cubic root of 421613171 is about 749.8448099644.

Adding to 421613171 its reverse (171316124), we get a palindrome (592929295).

The spelling of 421613171 in words is "four hundred twenty-one million, six hundred thirteen thousand, one hundred seventy-one".