397683229 has 2 divisors, whose sum is σ = 397683230. Its totient is φ = 397683228.

The previous prime is 397683199. The next prime is 397683233. The reversal of 397683229 is 922386793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373378329 + 24304900 = 19323^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 397683229 - 2⁵ = 397683197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397683029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198841614 + 198841615.

It is an arithmetic number, because the mean of its divisors is an integer number (198841615).

Almost surely, 2^397683229 is an apocalyptic number.

It is an amenable number.

397683229 is a deficient number, since it is larger than the sum of its proper divisors (1).

397683229 is an equidigital number, since it uses as much as digits as its factorization.

397683229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 397683229 is about 19941.9966151837. The cubic root of 397683229 is about 735.3810349428.

The spelling of 397683229 in words is "three hundred ninety-seven million, six hundred eighty-three thousand, two hundred twenty-nine".