989020328 has 32 divisors (see below), whose sum is σ = 1891519560. Its totient is φ = 484673280.

The previous prime is 989020313. The next prime is 989020343. The reversal of 989020328 is 823020989.

It is an interprime number because it is at equal distance from previous prime (989020313) and next prime (989020343).

It can be written as a sum of positive squares in 4 ways, for example, as 876278404 + 112741924 = 29602^2 + 10618^2 .

It is a super-2 number, since 2×989020328² = 1956322418394455168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139526 + ... + 146442.

Almost surely, 2^989020328 is an apocalyptic number.

It is an amenable number.

989020328 is a deficient number, since it is larger than the sum of its proper divisors (902499232).

989020328 is a wasteful number, since it uses less digits than its factorization.

989020328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277 (or 7273 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 989020328 is about 31448.6935817690. The cubic root of 989020328 is about 996.3266322249.

The spelling of 989020328 in words is "nine hundred eighty-nine million, twenty thousand, three hundred twenty-eight".