8722201 has 4 divisors (see below), whose sum is σ = 8738100. Its totient is φ = 8706304.

The previous prime is 8722193. The next prime is 8722211. The reversal of 8722201 is 1022278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1104601 + 7617600 = 1051^2 + 2760^2 .

It is a cyclic number.

It is not a de Polignac number, because 8722201 - 2³ = 8722193 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8722211) 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, 7096 + ... + 8233.

It is an arithmetic number, because the mean of its divisors is an integer number (2184525).

Almost surely, 2^8722201 is an apocalyptic number.

It is an amenable number.

8722201 is a deficient number, since it is larger than the sum of its proper divisors (15899).

8722201 is a wasteful number, since it uses less digits than its factorization.

8722201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15898.

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

The square root of 8722201 is about 2953.3372648582. The cubic root of 8722201 is about 205.8458094612.

Adding to 8722201 its reverse (1022278), we get a palindrome (9744479).

The spelling of 8722201 in words is "eight million, seven hundred twenty-two thousand, two hundred one".