577913641 has 2 divisors, whose sum is σ = 577913642. Its totient is φ = 577913640.

The previous prime is 577913639. The next prime is 577913689. The reversal of 577913641 is 146319775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504451600 + 73462041 = 22460^2 + 8571^2 .

It is a cyclic number.

It is not a de Polignac number, because 577913641 - 2¹ = 577913639 is a prime.

Together with 577913639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (577313641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288956820 + 288956821.

It is an arithmetic number, because the mean of its divisors is an integer number (288956821).

Almost surely, 2^577913641 is an apocalyptic number.

It is an amenable number.

577913641 is a deficient number, since it is larger than the sum of its proper divisors (1).

577913641 is an equidigital number, since it uses as much as digits as its factorization.

577913641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 577913641 is about 24039.8344628244. The cubic root of 577913641 is about 832.9539305260.

The spelling of 577913641 in words is "five hundred seventy-seven million, nine hundred thirteen thousand, six hundred forty-one".