397683353 has 2 divisors, whose sum is σ = 397683354. Its totient is φ = 397683352.

The previous prime is 397683347. The next prime is 397683367. The reversal of 397683353 is 353386793.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375855769 + 21827584 = 19387^2 + 4672^2 .

It is an emirp because it is prime and its reverse (353386793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397683353 - 2⁴ = 397683337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 397683298 and 397683307.

It is not a weakly prime, because it can be changed into another prime (397683323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198841676 + 198841677.

It is an arithmetic number, because the mean of its divisors is an integer number (198841677).

Almost surely, 2^397683353 is an apocalyptic number.

It is an amenable number.

397683353 is a deficient number, since it is larger than the sum of its proper divisors (1).

397683353 is an equidigital number, since it uses as much as digits as its factorization.

397683353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 47.

The square root of 397683353 is about 19941.9997242002. Note that the first 3 decimals coincide. The cubic root of 397683353 is about 735.3811113749.

The spelling of 397683353 in words is "three hundred ninety-seven million, six hundred eighty-three thousand, three hundred fifty-three".