98950681 has 2 divisors, whose sum is σ = 98950682. Its totient is φ = 98950680.

The previous prime is 98950679. The next prime is 98950699. The reversal of 98950681 is 18605989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87254281 + 11696400 = 9341^2 + 3420^2 .

It is an emirp because it is prime and its reverse (18605989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98950681 - 2¹ = 98950679 is a prime.

It is a super-2 number, since 2×98950681² = 19582474540727522, which contains 22 as substring.

Together with 98950679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (98950661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49475340 + 49475341.

It is an arithmetic number, because the mean of its divisors is an integer number (49475341).

Almost surely, 2^98950681 is an apocalyptic number.

It is an amenable number.

98950681 is a deficient number, since it is larger than the sum of its proper divisors (1).

98950681 is an equidigital number, since it uses as much as digits as its factorization.

98950681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 98950681 is about 9947.3956893249. The cubic root of 98950681 is about 462.5296690001.

The spelling of 98950681 in words is "ninety-eight million, nine hundred fifty thousand, six hundred eighty-one".