98980997 has 2 divisors, whose sum is σ = 98980998. Its totient is φ = 98980996.

The previous prime is 98980961. The next prime is 98981009. The reversal of 98980997 is 79908989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98922916 + 58081 = 9946^2 + 241^2 .

It is an emirp because it is prime and its reverse (79908989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98980997 - 2⁶ = 98980933 is a prime.

It is a super-2 number, since 2×98980997² = 19594475534228018, 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 (98980907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49490498 + 49490499.

It is an arithmetic number, because the mean of its divisors is an integer number (49490499).

Almost surely, 2^98980997 is an apocalyptic number.

It is an amenable number.

98980997 is a deficient number, since it is larger than the sum of its proper divisors (1).

98980997 is an equidigital number, since it uses as much as digits as its factorization.

98980997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 59.

The square root of 98980997 is about 9948.9193885567. The cubic root of 98980997 is about 462.5768999962.

The spelling of 98980997 in words is "ninety-eight million, nine hundred eighty thousand, nine hundred ninety-seven".