98765669 has 2 divisors, whose sum is σ = 98765670. Its totient is φ = 98765668.

The previous prime is 98765647. The next prime is 98765683. The reversal of 98765669 is 96656789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88924900 + 9840769 = 9430^2 + 3137^2 .

It is a cyclic number.

It is not a de Polignac number, because 98765669 - 2⁸ = 98765413 is a prime.

It is a super-2 number, since 2×98765669² = 19509314746035122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98765609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49382834 + 49382835.

It is an arithmetic number, because the mean of its divisors is an integer number (49382835).

Almost surely, 2^98765669 is an apocalyptic number.

It is an amenable number.

98765669 is a deficient number, since it is larger than the sum of its proper divisors (1).

98765669 is an equidigital number, since it uses as much as digits as its factorization.

98765669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 56.

The square root of 98765669 is about 9938.0918188554. The cubic root of 98765669 is about 462.2412191476.

It can be divided in two parts, 9 and 8765669, that added together give a palindrome (8765678).

The spelling of 98765669 in words is "ninety-eight million, seven hundred sixty-five thousand, six hundred sixty-nine".