397794 has 16 divisors (see below), whose sum is σ = 802368. Its totient is φ = 131472.

The previous prime is 397763. The next prime is 397799. The reversal of 397794 is 497793.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (50148).

2³⁹⁷⁷⁹⁴ is an apocalyptic number.

397794 is an abundant number, since it is smaller than the sum of its proper divisors (404574).

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

397794 is a wasteful number, since it uses less digits than its factorization.

397794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 47628, while the sum is 39.

The square root of 397794 is about 630.7091247160. The cubic root of 397794 is about 73.5449306475.

Subtracting 397794 from its reverse (497793), we obtain a palindrome (99999).

The spelling of 397794 in words is "three hundred ninety-seven thousand, seven hundred ninety-four".