478834253 has 2 divisors, whose sum is σ = 478834254. Its totient is φ = 478834252.

The previous prime is 478834241. The next prime is 478834337. The reversal of 478834253 is 352438874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341991049 + 136843204 = 18493^2 + 11698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478834253 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478834753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239417126 + 239417127.

It is an arithmetic number, because the mean of its divisors is an integer number (239417127).

Almost surely, 2^478834253 is an apocalyptic number.

It is an amenable number.

478834253 is a deficient number, since it is larger than the sum of its proper divisors (1).

478834253 is an equidigital number, since it uses as much as digits as its factorization.

478834253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 44.

The square root of 478834253 is about 21882.2817137519. The cubic root of 478834253 is about 782.3391609053.

The spelling of 478834253 in words is "four hundred seventy-eight million, eight hundred thirty-four thousand, two hundred fifty-three".