6820201 has 4 divisors (see below), whose sum is σ = 6829312. Its totient is φ = 6811092.

The previous prime is 6820181. The next prime is 6820207. The reversal of 6820201 is 1020286.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6820201 - 2⁵ = 6820169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6820207) 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, 3321 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (1707328).

Almost surely, 2^6820201 is an apocalyptic number.

It is an amenable number.

6820201 is a deficient number, since it is larger than the sum of its proper divisors (9111).

6820201 is an equidigital number, since it uses as much as digits as its factorization.

6820201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 6820201 is about 2611.5514545955. The cubic root of 6820201 is about 189.6410675134.

Adding to 6820201 its reverse (1020286), we get a palindrome (7840487).

It can be divided in two parts, 6820 and 201, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 6820201 in words is "six million, eight hundred twenty thousand, two hundred one".