98541881 has 2 divisors, whose sum is σ = 98541882. Its totient is φ = 98541880.

The previous prime is 98541871. The next prime is 98541887. The reversal of 98541881 is 18814589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94400656 + 4141225 = 9716^2 + 2035^2 .

It is an emirp because it is prime and its reverse (18814589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98541881 - 2²² = 94347577 is a prime.

It is a super-2 number, since 2×98541881² = 19421004622036322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (98541887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49270940 + 49270941.

It is an arithmetic number, because the mean of its divisors is an integer number (49270941).

Almost surely, 2^98541881 is an apocalyptic number.

It is an amenable number.

98541881 is a deficient number, since it is larger than the sum of its proper divisors (1).

98541881 is an equidigital number, since it uses as much as digits as its factorization.

98541881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 44.

The square root of 98541881 is about 9926.8263307061. The cubic root of 98541881 is about 461.8918323381.

The spelling of 98541881 in words is "ninety-eight million, five hundred forty-one thousand, eight hundred eighty-one".