397078 has 8 divisors (see below), whose sum is σ = 649800. Its totient is φ = 180480.

The previous prime is 397073. The next prime is 397093. The reversal of 397078 is 870793.

397078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397073) by changing a digit.

397078 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, 9003 + ... + 9046.

It is an arithmetic number, because the mean of its divisors is an integer number (81225).

2³⁹⁷⁰⁷⁸ is an apocalyptic number.

397078 is a deficient number, since it is larger than the sum of its proper divisors (252722).

397078 is a wasteful number, since it uses less digits than its factorization.

397078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18062.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 397078 is about 630.1412540058. The cubic root of 397078 is about 73.5007789881.

It can be divided in two parts, 39 and 7078, that added together give a palindrome (7117).

The spelling of 397078 in words is "three hundred ninety-seven thousand, seventy-eight".