397812248 has 16 divisors (see below), whose sum is σ = 747177480. Its totient is φ = 198564928.

The previous prime is 397812199. The next prime is 397812263. The reversal of 397812248 is 842218793.

It is a junction number, because it is equal to n+sod(n) for n = 397812199 and 397812208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37661 + ... + 47052.

Almost surely, 2^397812248 is an apocalyptic number.

It is an amenable number.

397812248 is a deficient number, since it is larger than the sum of its proper divisors (349365232).

397812248 is a wasteful number, since it uses less digits than its factorization.

397812248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85306 (or 85302 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 397812248 is about 19945.2312094897. The cubic root of 397812248 is about 735.4605520562.

The spelling of 397812248 in words is "three hundred ninety-seven million, eight hundred twelve thousand, two hundred forty-eight".