472523321 has 2 divisors, whose sum is σ = 472523322. Its totient is φ = 472523320.

The previous prime is 472523291. The next prime is 472523323. The reversal of 472523321 is 123325274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302586025 + 169937296 = 17395^2 + 13036^2 .

It is a cyclic number.

It is not a de Polignac number, because 472523321 - 2¹⁸ = 472261177 is a prime.

Together with 472523323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (472523323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236261660 + 236261661.

It is an arithmetic number, because the mean of its divisors is an integer number (236261661).

Almost surely, 2^472523321 is an apocalyptic number.

It is an amenable number.

472523321 is a deficient number, since it is larger than the sum of its proper divisors (1).

472523321 is an equidigital number, since it uses as much as digits as its factorization.

472523321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 29.

The square root of 472523321 is about 21737.6015466288. The cubic root of 472523321 is about 778.8869292631.

Adding to 472523321 its reverse (123325274), we get a palindrome (595848595).

The spelling of 472523321 in words is "four hundred seventy-two million, five hundred twenty-three thousand, three hundred twenty-one".