478194653 has 2 divisors, whose sum is σ = 478194654. Its totient is φ = 478194652.

The previous prime is 478194637. The next prime is 478194709. The reversal of 478194653 is 356491874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 385611769 + 92582884 = 19637^2 + 9622^2 .

It is a cyclic number.

It is not a de Polignac number, because 478194653 - 2⁴ = 478194637 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 478194598 and 478194607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478190653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239097326 + 239097327.

It is an arithmetic number, because the mean of its divisors is an integer number (239097327).

Almost surely, 2^478194653 is an apocalyptic number.

It is an amenable number.

478194653 is a deficient number, since it is larger than the sum of its proper divisors (1).

478194653 is an equidigital number, since it uses as much as digits as its factorization.

478194653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 478194653 is about 21867.6622664609. The cubic root of 478194653 is about 781.9906707373.

The spelling of 478194653 in words is "four hundred seventy-eight million, one hundred ninety-four thousand, six hundred fifty-three".