989024321 has 2 divisors, whose sum is σ = 989024322. Its totient is φ = 989024320.

The previous prime is 989024299. The next prime is 989024327. The reversal of 989024321 is 123420989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 941262400 + 47761921 = 30680^2 + 6911^2 .

It is a cyclic number.

It is not a de Polignac number, because 989024321 - 2¹⁴ = 989007937 is a prime.

It is a super-2 number, since 2×989024321² = 1956338215059022082, which contains 22 as substring.

It is equal to p_50317598 and since 989024321 and 50317598 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (989024327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494512160 + 494512161.

It is an arithmetic number, because the mean of its divisors is an integer number (494512161).

Almost surely, 2^989024321 is an apocalyptic number.

It is an amenable number.

989024321 is a deficient number, since it is larger than the sum of its proper divisors (1).

989024321 is an equidigital number, since it uses as much as digits as its factorization.

989024321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 989024321 is about 31448.7570660591. The cubic root of 989024321 is about 996.3279730557.

The spelling of 989024321 in words is "nine hundred eighty-nine million, twenty-four thousand, three hundred twenty-one".