563662723 has 4 divisors (see below), whose sum is σ = 607021408. Its totient is φ = 520304040.

The previous prime is 563662667. The next prime is 563662733. The reversal of 563662723 is 327266365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327266365 = 5 ⋅65453273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563662723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563662733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21679323 + ... + 21679348.

It is an arithmetic number, because the mean of its divisors is an integer number (151755352).

Almost surely, 2^563662723 is an apocalyptic number.

563662723 is a deficient number, since it is larger than the sum of its proper divisors (43358685).

563662723 is a wasteful number, since it uses less digits than its factorization.

563662723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43358684.

The product of its digits is 272160, while the sum is 40.

The square root of 563662723 is about 23741.5821503117. The cubic root of 563662723 is about 826.0501951099.

The spelling of 563662723 in words is "five hundred sixty-three million, six hundred sixty-two thousand, seven hundred twenty-three".