89820617 has 2 divisors, whose sum is σ = 89820618. Its totient is φ = 89820616.

The previous prime is 89820583. The next prime is 89820629. The reversal of 89820617 is 71602898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84198976 + 5621641 = 9176^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 89820617 - 2¹⁴ = 89804233 is a prime.

It is not a weakly prime, because it can be changed into another prime (89820677) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44910308 + 44910309.

It is an arithmetic number, because the mean of its divisors is an integer number (44910309).

Almost surely, 2^89820617 is an apocalyptic number.

It is an amenable number.

89820617 is a deficient number, since it is larger than the sum of its proper divisors (1).

89820617 is an equidigital number, since it uses as much as digits as its factorization.

89820617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 89820617 is about 9477.3739506258. The cubic root of 89820617 is about 447.8425403935.

The spelling of 89820617 in words is "eighty-nine million, eight hundred twenty thousand, six hundred seventeen".