397654848 has 84 divisors (see below), whose sum is σ = 1152761220. Its totient is φ = 131045376.

The previous prime is 397654847. The next prime is 397654879. The reversal of 397654848 is 848456793.

397654848 is a `hidden beast` number, since 3 + 97 + 6 + 548 + 4 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 202549824 + 195105024 = 14232^2 + 13968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 397654794 and 397654803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397654847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47386 + ... + 55142.

Almost surely, 2^397654848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397654848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576380610).

397654848 is an abundant number, since it is smaller than the sum of its proper divisors (755106372).

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

397654848 is a wasteful number, since it uses less digits than its factorization.

397654848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864 (or 7851 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 397654848 is about 19941.2850137598. The cubic root of 397654848 is about 735.3635408301.

The spelling of 397654848 in words is "three hundred ninety-seven million, six hundred fifty-four thousand, eight hundred forty-eight".