972001489 has 2 divisors, whose sum is σ = 972001490. Its totient is φ = 972001488.

The previous prime is 972001453. The next prime is 972001517. The reversal of 972001489 is 984100279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831341889 + 140659600 = 28833^2 + 11860^2 .

It is a cyclic number.

It is not a de Polignac number, because 972001489 - 2²⁵ = 938447057 is a prime.

It is not a weakly prime, because it can be changed into another prime (972008489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486000744 + 486000745.

It is an arithmetic number, because the mean of its divisors is an integer number (486000745).

Almost surely, 2^972001489 is an apocalyptic number.

It is an amenable number.

972001489 is a deficient number, since it is larger than the sum of its proper divisors (1).

972001489 is an equidigital number, since it uses as much as digits as its factorization.

972001489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 972001489 is about 31176.9384160793. The cubic root of 972001489 is about 990.5786804881.

It can be divided in two parts, 97200 and 1489, that added together give a palindrome (98689).

The spelling of 972001489 in words is "nine hundred seventy-two million, one thousand, four hundred eighty-nine".