972132839 has 2 divisors, whose sum is σ = 972132840. Its totient is φ = 972132838.

The previous prime is 972132827. The next prime is 972132893. The reversal of 972132839 is 938231279.

It is a happy number.

Together with next prime (972132893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (938231279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972132839 - 2⁴ = 972132823 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 972132839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972162839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486066419 + 486066420.

It is an arithmetic number, because the mean of its divisors is an integer number (486066420).

Almost surely, 2^972132839 is an apocalyptic number.

972132839 is a deficient number, since it is larger than the sum of its proper divisors (1).

972132839 is an equidigital number, since it uses as much as digits as its factorization.

972132839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 972132839 is about 31179.0448699122. The cubic root of 972132839 is about 990.6232986122.

The spelling of 972132839 in words is "nine hundred seventy-two million, one hundred thirty-two thousand, eight hundred thirty-nine".