98765399 has 2 divisors, whose sum is σ = 98765400. Its totient is φ = 98765398.

The previous prime is 98765389. The next prime is 98765413. The reversal of 98765399 is 99356789.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98765399 - 2⁴ = 98765383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98765309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49382699 + 49382700.

It is an arithmetic number, because the mean of its divisors is an integer number (49382700).

Almost surely, 2^98765399 is an apocalyptic number.

98765399 is a deficient number, since it is larger than the sum of its proper divisors (1).

98765399 is an equidigital number, since it uses as much as digits as its factorization.

98765399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 56.

The square root of 98765399 is about 9938.0782347494. The cubic root of 98765399 is about 462.2407979309.

The spelling of 98765399 in words is "ninety-eight million, seven hundred sixty-five thousand, three hundred ninety-nine".