201670 has 32 divisors (see below), whose sum is σ = 430848. Its totient is φ = 66528.

The previous prime is 201667. The next prime is 201673. The reversal of 201670 is 76102.

201670 is digitally balanced in base 2 and base 3, because in such bases 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 (201667) and next prime (201673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201673) 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, 2977 + ... + 3043.

It is an arithmetic number, because the mean of its divisors is an integer number (13464).

2²⁰¹⁶⁷⁰ is an apocalyptic number.

201670 is an abundant number, since it is smaller than the sum of its proper divisors (229178).

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

201670 is a wasteful number, since it uses less digits than its factorization.

201670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 201670 is about 449.0768308430. The cubic root of 201670 is about 58.6426741310.

Adding to 201670 its reverse (76102), we get a palindrome (277772).

The spelling of 201670 in words is "two hundred one thousand, six hundred seventy".