972373229 has 2 divisors, whose sum is σ = 972373230. Its totient is φ = 972373228.

The previous prime is 972373201. The next prime is 972373267. The reversal of 972373229 is 922373279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523357129 + 449016100 = 22877^2 + 21190^2 .

It is an emirp because it is prime and its reverse (922373279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 972373229 - 2¹² = 972369133 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 972373229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972373289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486186614 + 486186615.

It is an arithmetic number, because the mean of its divisors is an integer number (486186615).

Almost surely, 2^972373229 is an apocalyptic number.

It is an amenable number.

972373229 is a deficient number, since it is larger than the sum of its proper divisors (1).

972373229 is an equidigital number, since it uses as much as digits as its factorization.

972373229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 972373229 is about 31182.8996246340. The cubic root of 972373229 is about 990.7049459958.

The spelling of 972373229 in words is "nine hundred seventy-two million, three hundred seventy-three thousand, two hundred twenty-nine".