577428857 has 2 divisors, whose sum is σ = 577428858. Its totient is φ = 577428856.

The previous prime is 577428821. The next prime is 577428893. The reversal of 577428857 is 758824775.

It is a balanced prime because it is at equal distance from previous prime (577428821) and next prime (577428893).

It can be written as a sum of positive squares in only one way, i.e., 487349776 + 90079081 = 22076^2 + 9491^2 .

It is a cyclic number.

It is not a de Polignac number, because 577428857 - 2¹⁸ = 577166713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 577428799 and 577428808.

It is not a weakly prime, because it can be changed into another prime (577428157) 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, 288714428 + 288714429.

It is an arithmetic number, because the mean of its divisors is an integer number (288714429).

Almost surely, 2^577428857 is an apocalyptic number.

It is an amenable number.

577428857 is a deficient number, since it is larger than the sum of its proper divisors (1).

577428857 is an equidigital number, since it uses as much as digits as its factorization.

577428857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4390400, while the sum is 53.

The square root of 577428857 is about 24029.7494160884. The cubic root of 577428857 is about 832.7209570201.

The spelling of 577428857 in words is "five hundred seventy-seven million, four hundred twenty-eight thousand, eight hundred fifty-seven".