478397 has 8 divisors (see below), whose sum is σ = 513216. Its totient is φ = 444352.

The previous prime is 478391. The next prime is 478399. The reversal of 478397 is 793874.

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

It is a cyclic number.

It is not a de Polignac number, because 478397 - 2¹⁴ = 462013 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 478397.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478397.

It is not an unprimeable number, because it can be changed into a prime (478391) 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, 1688 + ... + 1950.

It is an arithmetic number, because the mean of its divisors is an integer number (64152).

2⁴⁷⁸³⁹⁷ is an apocalyptic number.

It is an amenable number.

478397 is a deficient number, since it is larger than the sum of its proper divisors (34819).

478397 is a wasteful number, since it uses less digits than its factorization.

478397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387.

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

The square root of 478397 is about 691.6624899472. The cubic root of 478397 is about 78.2100954386.

The spelling of 478397 in words is "four hundred seventy-eight thousand, three hundred ninety-seven".