98999969 has 2 divisors, whose sum is σ = 98999970. Its totient is φ = 98999968.

The previous prime is 98999963. The next prime is 98999977. The reversal of 98999969 is 96999989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 45050944 = 7345^2 + 6712^2 .

It is a cyclic number.

It is not a de Polignac number, because 98999969 - 2²⁰ = 97951393 is a prime.

It is a super-2 number, since 2×98999969² = 19601987724001922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 98999899 and 98999908.

It is not a weakly prime, because it can be changed into another prime (98999963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49499984 + 49499985.

It is an arithmetic number, because the mean of its divisors is an integer number (49499985).

Almost surely, 2^98999969 is an apocalyptic number.

It is an amenable number.

98999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

98999969 is an equidigital number, since it uses as much as digits as its factorization.

98999969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25509168, while the sum is 68.

The square root of 98999969 is about 9949.8728132575. The cubic root of 98999969 is about 462.6064526327.

The spelling of 98999969 in words is "ninety-eight million, nine hundred ninety-nine thousand, nine hundred sixty-nine".