397911341 has 2 divisors, whose sum is σ = 397911342. Its totient is φ = 397911340.

The previous prime is 397911329. The next prime is 397911383. The reversal of 397911341 is 143119793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222904900 + 175006441 = 14930^2 + 13229^2 .

It is a cyclic number.

It is not a de Polignac number, because 397911341 - 2⁶ = 397911277 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 397911295 and 397911304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397911391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198955670 + 198955671.

It is an arithmetic number, because the mean of its divisors is an integer number (198955671).

Almost surely, 2^397911341 is an apocalyptic number.

It is an amenable number.

397911341 is a deficient number, since it is larger than the sum of its proper divisors (1).

397911341 is an equidigital number, since it uses as much as digits as its factorization.

397911341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 38.

The square root of 397911341 is about 19947.7151824463. The cubic root of 397911341 is about 735.5216134761.

The spelling of 397911341 in words is "three hundred ninety-seven million, nine hundred eleven thousand, three hundred forty-one".