397243105 has 8 divisors (see below), whose sum is σ = 544790592. Its totient is φ = 272395248.

The previous prime is 397243043. The next prime is 397243117. The reversal of 397243105 is 501342793.

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 397243105 - 2⁷ = 397242977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5674867 + ... + 5674936.

It is an arithmetic number, because the mean of its divisors is an integer number (68098824).

Almost surely, 2^397243105 is an apocalyptic number.

397243105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

397243105 is a deficient number, since it is larger than the sum of its proper divisors (147547487).

397243105 is a wasteful number, since it uses less digits than its factorization.

397243105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11349815.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 397243105 is about 19930.9584566322. The cubic root of 397243105 is about 735.1096478250.

Adding to 397243105 its reverse (501342793), we get a palindrome (898585898).

The spelling of 397243105 in words is "three hundred ninety-seven million, two hundred forty-three thousand, one hundred five".