1670201 has 4 divisors (see below), whose sum is σ = 1798692. Its totient is φ = 1541712.

The previous prime is 1670183. The next prime is 1670213. The reversal of 1670201 is 1020761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1020761 = 7 ⋅145823.

It can be written as a sum of positive squares in 2 ways, for example, as 462400 + 1207801 = 680^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670201 - 2¹⁰ = 1669177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1670201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670281) 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, 64226 + ... + 64251.

It is an arithmetic number, because the mean of its divisors is an integer number (449673).

2^1670201 is an apocalyptic number.

It is an amenable number.

1670201 is a deficient number, since it is larger than the sum of its proper divisors (128491).

1670201 is a wasteful number, since it uses less digits than its factorization.

1670201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128490.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1670201 is about 1292.3625652270. The cubic root of 1670201 is about 118.6468592885.

Adding to 1670201 its reverse (1020761), we get a palindrome (2690962).

The spelling of 1670201 in words is "one million, six hundred seventy thousand, two hundred one".