563968477 has 2 divisors, whose sum is σ = 563968478. Its totient is φ = 563968476.

The previous prime is 563968459. The next prime is 563968511. The reversal of 563968477 is 774869365.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483076441 + 80892036 = 21979^2 + 8994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-563968477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563968277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281984238 + 281984239.

It is an arithmetic number, because the mean of its divisors is an integer number (281984239).

Almost surely, 2^563968477 is an apocalyptic number.

It is an amenable number.

563968477 is a deficient number, since it is larger than the sum of its proper divisors (1).

563968477 is an equidigital number, since it uses as much as digits as its factorization.

563968477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 55.

The square root of 563968477 is about 23748.0204859268. The cubic root of 563968477 is about 826.1995293879.

It can be divided in two parts, 5639684 and 77, that added together give a triangular number (5639761 = T₃₃₅₈).

The spelling of 563968477 in words is "five hundred sixty-three million, nine hundred sixty-eight thousand, four hundred seventy-seven".