98942981 has 2 divisors, whose sum is σ = 98942982. Its totient is φ = 98942980.

The previous prime is 98942971. The next prime is 98942989. The reversal of 98942981 is 18924989.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91968100 + 6974881 = 9590^2 + 2641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98942981 is a prime.

It is a super-2 number, since 2×98942981² = 19579426978332722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98942989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49471490 + 49471491.

It is an arithmetic number, because the mean of its divisors is an integer number (49471491).

Almost surely, 2^98942981 is an apocalyptic number.

It is an amenable number.

98942981 is a deficient number, since it is larger than the sum of its proper divisors (1).

98942981 is an equidigital number, since it uses as much as digits as its factorization.

98942981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 98942981 is about 9947.0086458191. The cubic root of 98942981 is about 462.5176712021.

The spelling of 98942981 in words is "ninety-eight million, nine hundred forty-two thousand, nine hundred eighty-one".