98861761 has 2 divisors, whose sum is σ = 98861762. Its totient is φ = 98861760.

The previous prime is 98861747. The next prime is 98861767. The reversal of 98861761 is 16716889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83612736 + 15249025 = 9144^2 + 3905^2 .

It is a cyclic number.

It is not a de Polignac number, because 98861761 - 2⁹ = 98861249 is a prime.

It is a super-2 number, since 2×98861761² = 19547295576042242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98861767) 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, 49430880 + 49430881.

It is an arithmetic number, because the mean of its divisors is an integer number (49430881).

Almost surely, 2^98861761 is an apocalyptic number.

It is an amenable number.

98861761 is a deficient number, since it is larger than the sum of its proper divisors (1).

98861761 is an equidigital number, since it uses as much as digits as its factorization.

98861761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 98861761 is about 9942.9251732073. The cubic root of 98861761 is about 462.3910798782.

The spelling of 98861761 in words is "ninety-eight million, eight hundred sixty-one thousand, seven hundred sixty-one".