989738884 has 6 divisors (see below), whose sum is σ = 1732043054. Its totient is φ = 494869440.

The previous prime is 989738881. The next prime is 989738887. The reversal of 989738884 is 488837989.

It is an interprime number because it is at equal distance from previous prime (989738881) and next prime (989738887).

It can be written as a sum of positive squares in only one way, i.e., 968578884 + 21160000 = 31122^2 + 4600^2 .

It is not an unprimeable number, because it can be changed into a prime (989738881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123717357 + ... + 123717364.

Almost surely, 2^989738884 is an apocalyptic number.

It is an amenable number.

989738884 is a deficient number, since it is larger than the sum of its proper divisors (742304170).

989738884 is a wasteful number, since it uses less digits than its factorization.

989738884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247434725 (or 247434723 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 64.

The square root of 989738884 is about 31460.1157658391. The cubic root of 989738884 is about 996.5678619045.

The spelling of 989738884 in words is "nine hundred eighty-nine million, seven hundred thirty-eight thousand, eight hundred eighty-four".