578025647 has 2 divisors, whose sum is σ = 578025648. Its totient is φ = 578025646.

The previous prime is 578025601. The next prime is 578025649. The reversal of 578025647 is 746520875.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 578025647 - 2¹⁸ = 577763503 is a prime.

It is a super-2 number, since 2×578025647² = 668227297179537218, which contains 22 as substring.

Together with 578025649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 578025598 and 578025607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (578025649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289012823 + 289012824.

It is an arithmetic number, because the mean of its divisors is an integer number (289012824).

Almost surely, 2^578025647 is an apocalyptic number.

578025647 is a deficient number, since it is larger than the sum of its proper divisors (1).

578025647 is an equidigital number, since it uses as much as digits as its factorization.

578025647 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 44.

The square root of 578025647 is about 24042.1639417087. The cubic root of 578025647 is about 833.0077389181.

The spelling of 578025647 in words is "five hundred seventy-eight million, twenty-five thousand, six hundred forty-seven".