578140477 has 2 divisors, whose sum is σ = 578140478. Its totient is φ = 578140476.

The previous prime is 578140447. The next prime is 578140523. The reversal of 578140477 is 774041875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465653241 + 112487236 = 21579^2 + 10606^2 .

It is a cyclic number.

It is not a de Polignac number, because 578140477 - 2⁷ = 578140349 is a prime.

It is a super-2 number, since 2×578140477² = 668492822291575058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (578140427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289070238 + 289070239.

It is an arithmetic number, because the mean of its divisors is an integer number (289070239).

Almost surely, 2^578140477 is an apocalyptic number.

It is an amenable number.

578140477 is a deficient number, since it is larger than the sum of its proper divisors (1).

578140477 is an equidigital number, since it uses as much as digits as its factorization.

578140477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219520, while the sum is 43.

The square root of 578140477 is about 24044.5519193018. The cubic root of 578140477 is about 833.0628967619.

The spelling of 578140477 in words is "five hundred seventy-eight million, one hundred forty thousand, four hundred seventy-seven".