577631641 has 2 divisors, whose sum is σ = 577631642. Its totient is φ = 577631640.

The previous prime is 577631633. The next prime is 577631671. The reversal of 577631641 is 146136775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487305625 + 90326016 = 22075^2 + 9504^2 .

It is a cyclic number.

It is not a de Polignac number, because 577631641 - 2³ = 577631633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 577631594 and 577631603.

It is not a weakly prime, because it can be changed into another prime (577631671) 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, 288815820 + 288815821.

It is an arithmetic number, because the mean of its divisors is an integer number (288815821).

Almost surely, 2^577631641 is an apocalyptic number.

It is an amenable number.

577631641 is a deficient number, since it is larger than the sum of its proper divisors (1).

577631641 is an equidigital number, since it uses as much as digits as its factorization.

577631641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 577631641 is about 24033.9684821296. The cubic root of 577631641 is about 832.8184251446.

The spelling of 577631641 in words is "five hundred seventy-seven million, six hundred thirty-one thousand, six hundred forty-one".