89756663 has 2 divisors, whose sum is σ = 89756664. Its totient is φ = 89756662.

The previous prime is 89756621. The next prime is 89756671. The reversal of 89756663 is 36665798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89756663 - 2⁶ = 89756599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89758663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44878331 + 44878332.

It is an arithmetic number, because the mean of its divisors is an integer number (44878332).

Almost surely, 2^89756663 is an apocalyptic number.

89756663 is a deficient number, since it is larger than the sum of its proper divisors (1).

89756663 is an equidigital number, since it uses as much as digits as its factorization.

89756663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 89756663 is about 9473.9993139117. Note that the first 3 decimals coincide. The cubic root of 89756663 is about 447.7362243338.

The spelling of 89756663 in words is "eighty-nine million, seven hundred fifty-six thousand, six hundred sixty-three".