89898917 has 2 divisors, whose sum is σ = 89898918. Its totient is φ = 89898916.

The previous prime is 89898911. The next prime is 89898929. The reversal of 89898917 is 71989898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78836641 + 11062276 = 8879^2 + 3326^2 .

It is a cyclic number.

It is not a de Polignac number, because 89898917 - 2¹² = 89894821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89898911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44949458 + 44949459.

It is an arithmetic number, because the mean of its divisors is an integer number (44949459).

Almost surely, 2^89898917 is an apocalyptic number.

It is an amenable number.

89898917 is a deficient number, since it is larger than the sum of its proper divisors (1).

89898917 is an equidigital number, since it uses as much as digits as its factorization.

89898917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 59.

The square root of 89898917 is about 9481.5039418860. The cubic root of 89898917 is about 447.9726363096.

It can be divided in two parts, 8989891 and 7, that added together give a palindrome (8989898).

The spelling of 89898917 in words is "eighty-nine million, eight hundred ninety-eight thousand, nine hundred seventeen".