7840201 has 4 divisors (see below), whose sum is σ = 7862400. Its totient is φ = 7818004.

The previous prime is 7840199. The next prime is 7840207. The reversal of 7840201 is 1020487.

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 7840201 - 2¹ = 7840199 is a prime.

It is a super-2 number, since 2×7840201² = 122937503440802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7840207) 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 3 ways as a sum of consecutive naturals, for example, 10561 + ... + 11278.

It is an arithmetic number, because the mean of its divisors is an integer number (1965600).

Almost surely, 2^7840201 is an apocalyptic number.

It is an amenable number.

7840201 is a deficient number, since it is larger than the sum of its proper divisors (22199).

7840201 is a wasteful number, since it uses less digits than its factorization.

7840201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22198.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7840201 is about 2800.0358926271. The cubic root of 7840201 is about 198.6593753736.

Adding to 7840201 its reverse (1020487), we get a palindrome (8860688).

The spelling of 7840201 in words is "seven million, eight hundred forty thousand, two hundred one".