1789201 has 2 divisors, whose sum is σ = 1789202. Its totient is φ = 1789200.

The previous prime is 1789181. The next prime is 1789217. The reversal of 1789201 is 1029871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 201601 = 1260^2 + 449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1789201 - 2⁵ = 1789169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1789201.

It is not a weakly prime, because it can be changed into another prime (1789261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894600 + 894601.

It is an arithmetic number, because the mean of its divisors is an integer number (894601).

2^1789201 is an apocalyptic number.

It is an amenable number.

1789201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1789201 is an equidigital number, since it uses as much as digits as its factorization.

1789201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1789201 is about 1337.6101823775. The cubic root of 1789201 is about 121.4002862443.

The spelling of 1789201 in words is "one million, seven hundred eighty-nine thousand, two hundred one".