989021038 has 16 divisors (see below), whose sum is σ = 1500670080. Its totient is φ = 488815416.

The previous prime is 989020997. The next prime is 989021039. The reversal of 989021038 is 830120989.

It is a super-2 number, since 2×989021038² = 1956325227213194888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989021039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116833 + ... + 125011.

It is an arithmetic number, because the mean of its divisors is an integer number (93791880).

Almost surely, 2^989021038 is an apocalyptic number.

989021038 is a deficient number, since it is larger than the sum of its proper divisors (511649042).

989021038 is a wasteful number, since it uses less digits than its factorization.

989021038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8871.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 989021038 is about 31448.7048699942. The cubic root of 989021038 is about 996.3268706398.

The spelling of 989021038 in words is "nine hundred eighty-nine million, twenty-one thousand, thirty-eight".