397746 has 24 divisors (see below), whose sum is σ = 907920. Its totient is φ = 125496.

The previous prime is 397729. The next prime is 397751. The reversal of 397746 is 647793.

397746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3⁴ + 9 + 7 + 7⁶ + 4³ + 6⁷ .

It is a Curzon number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 397746.

It is an unprimeable number.

397746 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 11 ways as a sum of consecutive naturals, for example, 240 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (37830).

2³⁹⁷⁷⁴⁶ is an apocalyptic number.

397746 is an abundant number, since it is smaller than the sum of its proper divisors (510174).

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

397746 is a wasteful number, since it uses less digits than its factorization.

397746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1187 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 397746 is about 630.6710711615. The cubic root of 397746 is about 73.5419724173.

Subtracting 397746 from its reverse (647793), we obtain a cube (250047 = 63³).

The spelling of 397746 in words is "three hundred ninety-seven thousand, seven hundred forty-six".