620670171 has 8 divisors (see below), whose sum is σ = 902793024. Its totient is φ = 376163720.

The previous prime is 620670161. The next prime is 620670173. The reversal of 620670171 is 171076026.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620670171 - 2⁵ = 620670139 is a prime.

It is a super-2 number, since 2×620670171² = 770462922338338482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (620670173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9404061 + ... + 9404126.

It is an arithmetic number, because the mean of its divisors is an integer number (112849128).

Almost surely, 2^620670171 is an apocalyptic number.

620670171 is a deficient number, since it is larger than the sum of its proper divisors (282122853).

620670171 is a wasteful number, since it uses less digits than its factorization.

620670171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18808201.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 620670171 is about 24913.2529188783. The cubic root of 620670171 is about 853.0090221496.

The spelling of 620670171 in words is "six hundred twenty million, six hundred seventy thousand, one hundred seventy-one".