98988761 has 2 divisors, whose sum is σ = 98988762. Its totient is φ = 98988760.

The previous prime is 98988731. The next prime is 98988809. The reversal of 98988761 is 16788989.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98883136 + 105625 = 9944^2 + 325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98988761 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 98988697 and 98988706.

It is not a weakly prime, because it can be changed into another prime (98988731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49494380 + 49494381.

It is an arithmetic number, because the mean of its divisors is an integer number (49494381).

Almost surely, 2^98988761 is an apocalyptic number.

It is an amenable number.

98988761 is a deficient number, since it is larger than the sum of its proper divisors (1).

98988761 is an equidigital number, since it uses as much as digits as its factorization.

98988761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The square root of 98988761 is about 9949.3095740358. The cubic root of 98988761 is about 462.5889944158.

The spelling of 98988761 in words is "ninety-eight million, nine hundred eighty-eight thousand, seven hundred sixty-one".