98402789 has 2 divisors, whose sum is σ = 98402790. Its totient is φ = 98402788.

The previous prime is 98402741. The next prime is 98402827. The reversal of 98402789 is 98720489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98109025 + 293764 = 9905^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 98402789 - 2¹² = 98398693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98402719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49201394 + 49201395.

It is an arithmetic number, because the mean of its divisors is an integer number (49201395).

Almost surely, 2^98402789 is an apocalyptic number.

It is an amenable number.

98402789 is a deficient number, since it is larger than the sum of its proper divisors (1).

98402789 is an equidigital number, since it uses as much as digits as its factorization.

98402789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 98402789 is about 9919.8179922819. The cubic root of 98402789 is about 461.6744096906.

The spelling of 98402789 in words is "ninety-eight million, four hundred two thousand, seven hundred eighty-nine".