397854768 has 30 divisors (see below), whose sum is σ = 1028148604. Its totient is φ = 132572192.

The previous prime is 397854767. The next prime is 397854797. The reversal of 397854768 is 867458793.

It is not an unprimeable number, because it can be changed into a prime (397854767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136753 + ... + 139631.

Almost surely, 2^397854768 is an apocalyptic number.

It is an amenable number.

397854768 is an abundant number, since it is smaller than the sum of its proper divisors (630293836).

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

397854768 is an frugal number, since it uses more digits than its factorization.

397854768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769 (or 2884 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 57.

The square root of 397854768 is about 19946.2970999632. The cubic root of 397854768 is about 735.4867542565.

The spelling of 397854768 in words is "three hundred ninety-seven million, eight hundred fifty-four thousand, seven hundred sixty-eight".