200000397 has 8 divisors (see below), whose sum is σ = 270423360. Its totient is φ = 131455520.

The previous prime is 200000377. The next prime is 200000399. The reversal of 200000397 is 793000002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200000397 - 2¹² = 199996301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200000399) 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 in 7 ways as a sum of consecutive naturals, for example, 469272 + ... + 469697.

It is an arithmetic number, because the mean of its divisors is an integer number (33802920).

Almost surely, 2^200000397 is an apocalyptic number.

It is an amenable number.

200000397 is a deficient number, since it is larger than the sum of its proper divisors (70422963).

200000397 is an equidigital number, since it uses as much as digits as its factorization.

200000397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939043.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 200000397 is about 14142.1496597936. The cubic root of 200000397 is about 584.8039345873.

Adding to 200000397 its reverse (793000002), we get a palindrome (993000399).

The spelling of 200000397 in words is "two hundred million, three hundred ninety-seven", and thus it is an aban number.