972229 has 2 divisors, whose sum is σ = 972230. Its totient is φ = 972228.

The previous prime is 972227. The next prime is 972259. The reversal of 972229 is 922279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 31329 = 970^2 + 177^2 .

It is a cyclic number.

It is not a de Polignac number, because 972229 - 2¹ = 972227 is a prime.

Together with 972227, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 972229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (972221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486114 + 486115.

It is an arithmetic number, because the mean of its divisors is an integer number (486115).

2⁹⁷²²²⁹ is an apocalyptic number.

It is an amenable number.

972229 is a deficient number, since it is larger than the sum of its proper divisors (1).

972229 is an equidigital number, since it uses as much as digits as its factorization.

972229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 972229 is about 986.0167341379. The cubic root of 972229 is about 99.0655960879.

The spelling of 972229 in words is "nine hundred seventy-two thousand, two hundred twenty-nine".