780201 has 6 divisors (see below), whose sum is σ = 1126970. Its totient is φ = 520128.

The previous prime is 780193. The next prime is 780211. The reversal of 780201 is 102087.

It can be written as a sum of positive squares in only one way, i.e., 488601 + 291600 = 699^2 + 540^2 .

It is not a de Polignac number, because 780201 - 2³ = 780193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43336 + ... + 43353.

2⁷⁸⁰²⁰¹ is an apocalyptic number.

It is an amenable number.

780201 is a deficient number, since it is larger than the sum of its proper divisors (346769).

780201 is a wasteful number, since it uses less digits than its factorization.

780201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86695 (or 86692 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 780201 is about 883.2898731447. The cubic root of 780201 is about 92.0595471460.

Adding to 780201 its reverse (102087), we get a palindrome (882288).

It can be divided in two parts, 7 and 80201, that added together give a palindrome (80208).

The spelling of 780201 in words is "seven hundred eighty thousand, two hundred one".