397357 has 2 divisors, whose sum is σ = 397358. Its totient is φ = 397356.

The previous prime is 397351. The next prime is 397361. The reversal of 397357 is 753793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352836 + 44521 = 594^2 + 211^2 .

It is an emirp because it is prime and its reverse (753793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397357 - 2¹¹ = 395309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198678 + 198679.

It is an arithmetic number, because the mean of its divisors is an integer number (198679).

2³⁹⁷³⁵⁷ is an apocalyptic number.

It is an amenable number.

397357 is a deficient number, since it is larger than the sum of its proper divisors (1).

397357 is an equidigital number, since it uses as much as digits as its factorization.

397357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19845, while the sum is 34.

The square root of 397357 is about 630.3625940679. The cubic root of 397357 is about 73.5179896422.

It can be divided in two parts, 39 and 7357, that added together give a square (7396 = 86²).

The spelling of 397357 in words is "three hundred ninety-seven thousand, three hundred fifty-seven".