983794497389 has 4 divisors (see below), whose sum is σ = 1073230360800. Its totient is φ = 894358633980.

The previous prime is 983794497359. The next prime is 983794497403.

983794497389 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-983794497389 is a prime.

It is a super-2 number, since 2×983794497389² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983794497319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44717931689 + ... + 44717931710.

It is an arithmetic number, because the mean of its divisors is an integer number (268307590200).

Almost surely, 2^983794497389 is an apocalyptic number.

It is an amenable number.

983794497389 is a deficient number, since it is larger than the sum of its proper divisors (89435863411).

983794497389 is a wasteful number, since it uses less digits than its factorization.

983794497389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89435863410.

The product of its digits is 2962842624, while the sum is 80.

The spelling of 983794497389 in words is "nine hundred eighty-three billion, seven hundred ninety-four million, four hundred ninety-seven thousand, three hundred eighty-nine".