972002201 has 4 divisors (see below), whose sum is σ = 975068772. Its totient is φ = 968935632.

The previous prime is 972002191. The next prime is 972002203. The reversal of 972002201 is 102200279.

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 214651801 + 757350400 = 14651^2 + 27520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972002201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972002203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532810 + ... + 1533443.

It is an arithmetic number, because the mean of its divisors is an integer number (243767193).

Almost surely, 2^972002201 is an apocalyptic number.

It is an amenable number.

972002201 is a deficient number, since it is larger than the sum of its proper divisors (3066571).

972002201 is a wasteful number, since it uses less digits than its factorization.

972002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066570.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 972002201 is about 31176.9498347738. The cubic root of 972002201 is about 990.5789223573.

The spelling of 972002201 in words is "nine hundred seventy-two million, two thousand, two hundred one".