478213 has 2 divisors, whose sum is σ = 478214. Its totient is φ = 478212.

The previous prime is 478207. The next prime is 478241. The reversal of 478213 is 312874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412164 + 66049 = 642^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 478213 - 2¹³ = 470021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239106 + 239107.

It is an arithmetic number, because the mean of its divisors is an integer number (239107).

2⁴⁷⁸²¹³ is an apocalyptic number.

It is an amenable number.

478213 is a deficient number, since it is larger than the sum of its proper divisors (1).

478213 is an equidigital number, since it uses as much as digits as its factorization.

478213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 25.

The square root of 478213 is about 691.5294643036. The cubic root of 478213 is about 78.2000671546.

The spelling of 478213 in words is "four hundred seventy-eight thousand, two hundred thirteen".