989220543 has 4 divisors (see below), whose sum is σ = 1318960728. Its totient is φ = 659480360.

The previous prime is 989220527. The next prime is 989220553. The reversal of 989220543 is 345022989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345022989 = 3 ⋅115007663.

It is a cyclic number.

It is not a de Polignac number, because 989220543 - 2⁴ = 989220527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 989220495 and 989220504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989220523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164870088 + ... + 164870093.

It is an arithmetic number, because the mean of its divisors is an integer number (329740182).

Almost surely, 2^989220543 is an apocalyptic number.

989220543 is a deficient number, since it is larger than the sum of its proper divisors (329740185).

989220543 is a wasteful number, since it uses less digits than its factorization.

989220543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329740184.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 989220543 is about 31451.8766212765. The cubic root of 989220543 is about 996.3938590458.

The spelling of 989220543 in words is "nine hundred eighty-nine million, two hundred twenty thousand, five hundred forty-three".