478507543 has 2 divisors, whose sum is σ = 478507544. Its totient is φ = 478507542.

The previous prime is 478507541. The next prime is 478507559. The reversal of 478507543 is 345705874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478507543 - 2¹ = 478507541 is a prime.

Together with 478507541, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 478507543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478507541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239253771 + 239253772.

It is an arithmetic number, because the mean of its divisors is an integer number (239253772).

Almost surely, 2^478507543 is an apocalyptic number.

478507543 is a deficient number, since it is larger than the sum of its proper divisors (1).

478507543 is an equidigital number, since it uses as much as digits as its factorization.

478507543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 478507543 is about 21874.8152677914. The cubic root of 478507543 is about 782.1611896627.

The spelling of 478507543 in words is "four hundred seventy-eight million, five hundred seven thousand, five hundred forty-three".