7812201 has 8 divisors (see below), whose sum is σ = 10563264. Its totient is φ = 5134640.

The previous prime is 7812191. The next prime is 7812221. The reversal of 7812201 is 1022187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7812201 - 2⁵ = 7812169 is a prime.

It is a super-2 number, since 2×7812201² = 122060968928802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7812221) 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 7 ways as a sum of consecutive naturals, for example, 18126 + ... + 18551.

It is an arithmetic number, because the mean of its divisors is an integer number (1320408).

Almost surely, 2^7812201 is an apocalyptic number.

7812201 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7812201 is a deficient number, since it is larger than the sum of its proper divisors (2751063).

7812201 is a wasteful number, since it uses less digits than its factorization.

7812201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36751.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 7812201 is about 2795.0314846169. The cubic root of 7812201 is about 198.4226000882.

Adding to 7812201 its reverse (1022187), we get a palindrome (8834388).

The spelling of 7812201 in words is "seven million, eight hundred twelve thousand, two hundred one".