397402201 has 8 divisors (see below), whose sum is σ = 463443200. Its totient is φ = 340630164.

The previous prime is 397402199. The next prime is 397402219. The reversal of 397402201 is 102204793.

It is not a de Polignac number, because 397402201 - 2¹ = 397402199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397402201.

It is not an unprimeable number, because it can be changed into a prime (397402231) 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, 578961 + ... + 579646.

It is an arithmetic number, because the mean of its divisors is an integer number (57930400).

Almost surely, 2^397402201 is an apocalyptic number.

It is an amenable number.

397402201 is a deficient number, since it is larger than the sum of its proper divisors (66040999).

397402201 is an equidigital number, since it uses as much as digits as its factorization.

397402201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158628 (or 1158614 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 397402201 is about 19934.9492349492. The cubic root of 397402201 is about 735.2077719487.

Adding to 397402201 its reverse (102204793), we get a palindrome (499606994).

The spelling of 397402201 in words is "three hundred ninety-seven million, four hundred two thousand, two hundred one".