576661623 has 8 divisors (see below), whose sum is σ = 769571328. Its totient is φ = 384096504.

The previous prime is 576661619. The next prime is 576661637. The reversal of 576661623 is 326166675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 576661623 - 2² = 576661619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (576661643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82215 + ... + 88952.

It is an arithmetic number, because the mean of its divisors is an integer number (96196416).

Almost surely, 2^576661623 is an apocalyptic number.

576661623 is a deficient number, since it is larger than the sum of its proper divisors (192909705).

576661623 is a wasteful number, since it uses less digits than its factorization.

576661623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172293.

The product of its digits is 272160, while the sum is 42.

The square root of 576661623 is about 24013.7798565740. The cubic root of 576661623 is about 832.3519793825.

The spelling of 576661623 in words is "five hundred seventy-six million, six hundred sixty-one thousand, six hundred twenty-three".