397614289 has 2 divisors, whose sum is σ = 397614290. Its totient is φ = 397614288.

The previous prime is 397614253. The next prime is 397614319. The reversal of 397614289 is 982416793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384473664 + 13140625 = 19608^2 + 3625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397614289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (397614089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198807144 + 198807145.

It is an arithmetic number, because the mean of its divisors is an integer number (198807145).

Almost surely, 2^397614289 is an apocalyptic number.

It is an amenable number.

397614289 is a deficient number, since it is larger than the sum of its proper divisors (1).

397614289 is an equidigital number, since it uses as much as digits as its factorization.

397614289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The square root of 397614289 is about 19940.2680272859. The cubic root of 397614289 is about 735.3385387259.

The spelling of 397614289 in words is "three hundred ninety-seven million, six hundred fourteen thousand, two hundred eighty-nine".