397229323 has 2 divisors, whose sum is σ = 397229324. Its totient is φ = 397229322.

The previous prime is 397229267. The next prime is 397229363. The reversal of 397229323 is 323922793.

It is an a-pointer prime, because the next prime (397229363) can be obtained adding 397229323 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397229323 is a prime.

It is a super-2 number, since 2×397229323² = 315582270102076658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (397229363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198614661 + 198614662.

It is an arithmetic number, because the mean of its divisors is an integer number (198614662).

Almost surely, 2^397229323 is an apocalyptic number.

397229323 is a deficient number, since it is larger than the sum of its proper divisors (1).

397229323 is an equidigital number, since it uses as much as digits as its factorization.

397229323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 40.

The square root of 397229323 is about 19930.6127101000. The cubic root of 397229323 is about 735.1011463992.

The spelling of 397229323 in words is "three hundred ninety-seven million, two hundred twenty-nine thousand, three hundred twenty-three".