577216634 has 4 divisors (see below), whose sum is σ = 865824954. Its totient is φ = 288608316.

The previous prime is 577216631. The next prime is 577216663. The reversal of 577216634 is 436612775.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 342361009 + 234855625 = 18503^2 + 15325^2 .

It is a junction number, because it is equal to n+sod(n) for n = 577216591 and 577216600.

It is not an unprimeable number, because it can be changed into a prime (577216631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144304157 + ... + 144304160.

Almost surely, 2^577216634 is an apocalyptic number.

577216634 is a deficient number, since it is larger than the sum of its proper divisors (288608320).

577216634 is a wasteful number, since it uses less digits than its factorization.

577216634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288608319.

The product of its digits is 211680, while the sum is 41.

The square root of 577216634 is about 24025.3331714672. Note that the first 3 decimals coincide. The cubic root of 577216634 is about 832.6189275999.

The spelling of 577216634 in words is "five hundred seventy-seven million, two hundred sixteen thousand, six hundred thirty-four".