478498859 has 2 divisors, whose sum is σ = 478498860. Its totient is φ = 478498858.

The previous prime is 478498849. The next prime is 478498873. The reversal of 478498859 is 958894874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478498859 - 2²⁰ = 477450283 is a prime.

It is a super-2 number, since 2×478498859² = 457922316128603762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478498829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239249429 + 239249430.

It is an arithmetic number, because the mean of its divisors is an integer number (239249430).

Almost surely, 2^478498859 is an apocalyptic number.

478498859 is a deficient number, since it is larger than the sum of its proper divisors (1).

478498859 is an equidigital number, since it uses as much as digits as its factorization.

478498859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 62.

The square root of 478498859 is about 21874.6167737860. The cubic root of 478498859 is about 782.1564580557.

The spelling of 478498859 in words is "four hundred seventy-eight million, four hundred ninety-eight thousand, eight hundred fifty-nine".