8931249563 has 2 divisors, whose sum is σ = 8931249564. Its totient is φ = 8931249562.

The previous prime is 8931249541. The next prime is 8931249601. The reversal of 8931249563 is 3659421398.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8931249563 - 2¹² = 8931245467 is a prime.

It is not a weakly prime, because it can be changed into another prime (8931249263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4465624781 + 4465624782.

It is an arithmetic number, because the mean of its divisors is an integer number (4465624782).

Almost surely, 2^8931249563 is an apocalyptic number.

8931249563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8931249563 is an equidigital number, since it uses as much as digits as its factorization.

8931249563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 8931249563 is about 94505.2885451391. The cubic root of 8931249563 is about 2074.7737354677.

The spelling of 8931249563 in words is "eight billion, nine hundred thirty-one million, two hundred forty-nine thousand, five hundred sixty-three".