576478421 has 2 divisors, whose sum is σ = 576478422. Its totient is φ = 576478420.

The previous prime is 576478393. The next prime is 576478481. The reversal of 576478421 is 124874675.

576478421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495730225 + 80748196 = 22265^2 + 8986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-576478421 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (576478481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288239210 + 288239211.

It is an arithmetic number, because the mean of its divisors is an integer number (288239211).

Almost surely, 2^576478421 is an apocalyptic number.

It is an amenable number.

576478421 is a deficient number, since it is larger than the sum of its proper divisors (1).

576478421 is an equidigital number, since it uses as much as digits as its factorization.

576478421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 44.

The square root of 576478421 is about 24009.9650353765. The cubic root of 576478421 is about 832.2638256066.

The spelling of 576478421 in words is "five hundred seventy-six million, four hundred seventy-eight thousand, four hundred twenty-one".