402616171 has 2 divisors, whose sum is σ = 402616172. Its totient is φ = 402616170.

The previous prime is 402616169. The next prime is 402616211. The reversal of 402616171 is 171616204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402616171 - 2¹ = 402616169 is a prime.

Together with 402616169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (402616271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201308085 + 201308086.

It is an arithmetic number, because the mean of its divisors is an integer number (201308086).

Almost surely, 2^402616171 is an apocalyptic number.

402616171 is a deficient number, since it is larger than the sum of its proper divisors (1).

402616171 is an equidigital number, since it uses as much as digits as its factorization.

402616171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 402616171 is about 20065.2976803236. The cubic root of 402616171 is about 738.4091530701.

The spelling of 402616171 in words is "four hundred two million, six hundred sixteen thousand, one hundred seventy-one".