983898389 has 2 divisors, whose sum is σ = 983898390. Its totient is φ = 983898388.

The previous prime is 983898379. The next prime is 983898397.

983898389 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 529782289 + 454116100 = 23017^2 + 21310^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 983898389 - 2⁴ = 983898373 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983898319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491949194 + 491949195.

It is an arithmetic number, because the mean of its divisors is an integer number (491949195).

Almost surely, 2^983898389 is an apocalyptic number.

It is an amenable number.

983898389 is a deficient number, since it is larger than the sum of its proper divisors (1).

983898389 is an equidigital number, since it uses as much as digits as its factorization.

983898389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26873856, while the sum is 65.

The square root of 983898389 is about 31367.1546207175. The cubic root of 983898389 is about 994.6037289717.

The spelling of 983898389 in words is "nine hundred eighty-three million, eight hundred ninety-eight thousand, three hundred eighty-nine".