397748 has 12 divisors (see below), whose sum is σ = 749700. Its totient is φ = 183552.

The previous prime is 397729. The next prime is 397751. The reversal of 397748 is 847793.

It can be written as a sum of positive squares in 2 ways, for example, as 35344 + 362404 = 188^2 + 602^2 .

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

397748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3773 + ... + 3876.

It is an arithmetic number, because the mean of its divisors is an integer number (62475).

2³⁹⁷⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

397748 is a deficient number, since it is larger than the sum of its proper divisors (351952).

397748 is a wasteful number, since it uses less digits than its factorization.

397748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666 (or 7664 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 397748 is about 630.6726567721. The cubic root of 397748 is about 73.5420956817.

The spelling of 397748 in words is "three hundred ninety-seven thousand, seven hundred forty-eight".