406630171 has 4 divisors (see below), whose sum is σ = 406948392. Its totient is φ = 406311952.

The previous prime is 406630139. The next prime is 406630187. The reversal of 406630171 is 171036604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406630171 - 2⁵ = 406630139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406630771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157186 + ... + 159751.

It is an arithmetic number, because the mean of its divisors is an integer number (101737098).

Almost surely, 2^406630171 is an apocalyptic number.

406630171 is a deficient number, since it is larger than the sum of its proper divisors (318221).

406630171 is a wasteful number, since it uses less digits than its factorization.

406630171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318220.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 406630171 is about 20165.0730472270. The cubic root of 406630171 is about 740.8549717596.

Adding to 406630171 its reverse (171036604), we get a palindrome (577666775).

The spelling of 406630171 in words is "four hundred six million, six hundred thirty thousand, one hundred seventy-one".