972311589 has 6 divisors (see below), whose sum is σ = 1404450086. Its totient is φ = 648207720.

The previous prime is 972311581. The next prime is 972311647. The reversal of 972311589 is 985113279.

972311589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 603095364 + 369216225 = 24558^2 + 19215^2 .

It is not a de Polignac number, because 972311589 - 2³ = 972311581 is a prime.

It is a super-2 number, since 2×972311589² = 1890779652207409842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972311581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54017302 + ... + 54017319.

Almost surely, 2^972311589 is an apocalyptic number.

It is an amenable number.

972311589 is a deficient number, since it is larger than the sum of its proper divisors (432138497).

972311589 is a wasteful number, since it uses less digits than its factorization.

972311589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108034627 (or 108034624 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 972311589 is about 31181.9112467469. The cubic root of 972311589 is about 990.6840115297.

It can be divided in two parts, 9723 and 11589, that added together give a palindrome (21312).

The spelling of 972311589 in words is "nine hundred seventy-two million, three hundred eleven thousand, five hundred eighty-nine".