397395814 has 8 divisors (see below), whose sum is σ = 600094800. Its totient is φ = 197364216.

The previous prime is 397395737. The next prime is 397395839. The reversal of 397395814 is 418593793.

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

It is a super-3 number, since 3×397395814³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666474 + ... + 667069.

It is an arithmetic number, because the mean of its divisors is an integer number (75011850).

Almost surely, 2^397395814 is an apocalyptic number.

397395814 is a deficient number, since it is larger than the sum of its proper divisors (202698986).

397395814 is a wasteful number, since it uses less digits than its factorization.

397395814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333694.

The product of its digits is 816480, while the sum is 49.

The square root of 397395814 is about 19934.7890382617. The cubic root of 397395814 is about 735.2038332042.

The spelling of 397395814 in words is "three hundred ninety-seven million, three hundred ninety-five thousand, eight hundred fourteen".