98765434393 has 2 divisors, whose sum is σ = 98765434394. Its totient is φ = 98765434392.

The previous prime is 98765434349. The next prime is 98765434423. The reversal of 98765434393 is 39343456789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87424888329 + 11340546064 = 295677^2 + 106492^2 .

It is a cyclic number.

It is not a de Polignac number, because 98765434393 - 2³³ = 90175499801 is a prime.

It is a super-2 number, since 2×98765434393² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98765434093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49382717196 + 49382717197.

It is an arithmetic number, because the mean of its divisors is an integer number (49382717197).

Almost surely, 2^98765434393 is an apocalyptic number.

It is an amenable number.

98765434393 is a deficient number, since it is larger than the sum of its proper divisors (1).

98765434393 is an equidigital number, since it uses as much as digits as its factorization.

98765434393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58786560, while the sum is 61.

The spelling of 98765434393 in words is "ninety-eight billion, seven hundred sixty-five million, four hundred thirty-four thousand, three hundred ninety-three".