983888389 has 6 divisors (see below), whose sum is σ = 1081464230. Its totient is φ = 894443880.

The previous prime is 983888383. The next prime is 983888407.

983888389 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 849722500 + 134165889 = 29150^2 + 11583^2 .

It is not a de Polignac number, because 983888389 - 2²³ = 975499781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 983888389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983888383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4065534 + ... + 4065775.

Almost surely, 2^983888389 is an apocalyptic number.

It is an amenable number.

983888389 is a deficient number, since it is larger than the sum of its proper divisors (97575841).

983888389 is a wasteful number, since it uses less digits than its factorization.

983888389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8131331 (or 8131320 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 64.

The square root of 983888389 is about 31366.9952179038. The cubic root of 983888389 is about 994.6003593585.

The spelling of 983888389 in words is "nine hundred eighty-three million, eight hundred eighty-eight thousand, three hundred eighty-nine".