478823 has 2 divisors, whose sum is σ = 478824. Its totient is φ = 478822.

The previous prime is 478813. The next prime is 478831. The reversal of 478823 is 328874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478823 - 2¹⁸ = 216679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239411 + 239412.

It is an arithmetic number, because the mean of its divisors is an integer number (239412).

2⁴⁷⁸⁸²³ is an apocalyptic number.

478823 is a deficient number, since it is larger than the sum of its proper divisors (1).

478823 is an equidigital number, since it uses as much as digits as its factorization.

478823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

The square root of 478823 is about 691.9703750884. The cubic root of 478823 is about 78.2333032319.

The spelling of 478823 in words is "four hundred seventy-eight thousand, eight hundred twenty-three".