89817061 has 2 divisors, whose sum is σ = 89817062. Its totient is φ = 89817060.

The previous prime is 89817043. The next prime is 89817107. The reversal of 89817061 is 16071898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89680900 + 136161 = 9470^2 + 369^2 .

It is a cyclic number.

It is not a de Polignac number, because 89817061 - 2⁵ = 89817029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89814061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44908530 + 44908531.

It is an arithmetic number, because the mean of its divisors is an integer number (44908531).

Almost surely, 2^89817061 is an apocalyptic number.

It is an amenable number.

89817061 is a deficient number, since it is larger than the sum of its proper divisors (1).

89817061 is an equidigital number, since it uses as much as digits as its factorization.

89817061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 89817061 is about 9477.1863440580. The cubic root of 89817061 is about 447.8366302838.

The spelling of 89817061 in words is "eighty-nine million, eight hundred seventeen thousand, sixty-one".