577663648 has 12 divisors (see below), whose sum is σ = 1137275370. Its totient is φ = 288831808.

The previous prime is 577663627. The next prime is 577663657. The reversal of 577663648 is 846366775.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 554508304 + 23155344 = 23548^2 + 4812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 577663595 and 577663604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9025963 + ... + 9026026.

Almost surely, 2^577663648 is an apocalyptic number.

It is an amenable number.

577663648 is a deficient number, since it is larger than the sum of its proper divisors (559611722).

577663648 is a wasteful number, since it uses less digits than its factorization.

577663648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18051999 (or 18051991 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The square root of 577663648 is about 24034.6343429643. The cubic root of 577663648 is about 832.8338072238.

It can be divided in two parts, 577 and 663648, that added together give a square (664225 = 815²).

The spelling of 577663648 in words is "five hundred seventy-seven million, six hundred sixty-three thousand, six hundred forty-eight".