620166 has 16 divisors (see below), whose sum is σ = 1271088. Its totient is φ = 201600.

The previous prime is 620161. The next prime is 620171. The reversal of 620166 is 661026.

620166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (620161) and next prime (620171).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015 + ... + 1506.

It is an arithmetic number, because the mean of its divisors is an integer number (79443).

2⁶²⁰¹⁶⁶ is an apocalyptic number.

620166 is an abundant number, since it is smaller than the sum of its proper divisors (650922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620166 is a wasteful number, since it uses less digits than its factorization.

620166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 620166 is about 787.5061904519. The cubic root of 620166 is about 85.2777992890.

The spelling of 620166 in words is "six hundred twenty thousand, one hundred sixty-six".