397457116 has 24 divisors (see below), whose sum is σ = 814304736. Its totient is φ = 166183680.

The previous prime is 397457087. The next prime is 397457117. The reversal of 397457116 is 611754793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397457117) 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, 171961 + ... + 174256.

It is an arithmetic number, because the mean of its divisors is an integer number (33929364).

Almost surely, 2^397457116 is an apocalyptic number.

It is an amenable number.

397457116 is an abundant number, since it is smaller than the sum of its proper divisors (416847620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397457116 is a wasteful number, since it uses less digits than its factorization.

397457116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346269 (or 346267 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 397457116 is about 19936.3265422695. The cubic root of 397457116 is about 735.2416352700.

The spelling of 397457116 in words is "three hundred ninety-seven million, four hundred fifty-seven thousand, one hundred sixteen".