83563567 has 2 divisors, whose sum is σ = 83563568. Its totient is φ = 83563566.

The previous prime is 83563541. The next prime is 83563589. The reversal of 83563567 is 76536538.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83563567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83563367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41781783 + 41781784.

It is an arithmetic number, because the mean of its divisors is an integer number (41781784).

Almost surely, 2^83563567 is an apocalyptic number.

83563567 is a deficient number, since it is larger than the sum of its proper divisors (1).

83563567 is an equidigital number, since it uses as much as digits as its factorization.

83563567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 43.

The square root of 83563567 is about 9141.3110110093. The cubic root of 83563567 is about 437.1921177519.

The spelling of 83563567 in words is "eighty-three million, five hundred sixty-three thousand, five hundred sixty-seven".