98989697 has 2 divisors, whose sum is σ = 98989698. Its totient is φ = 98989696.

The previous prime is 98989687. The next prime is 98989717. The reversal of 98989697 is 79698989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69872881 + 29116816 = 8359^2 + 5396^2 .

It is a cyclic number.

It is not a de Polignac number, because 98989697 - 2⁶ = 98989633 is a prime.

It is a super-2 number, since 2×98989697² = 19597920224303618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98989687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49494848 + 49494849.

It is an arithmetic number, because the mean of its divisors is an integer number (49494849).

Almost surely, 2^98989697 is an apocalyptic number.

It is an amenable number.

98989697 is a deficient number, since it is larger than the sum of its proper divisors (1).

98989697 is an equidigital number, since it uses as much as digits as its factorization.

98989697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 65.

The square root of 98989697 is about 9949.3566123644. The cubic root of 98989697 is about 462.5904524330.

The spelling of 98989697 in words is "ninety-eight million, nine hundred eighty-nine thousand, six hundred ninety-seven".