989522 has 4 divisors (see below), whose sum is σ = 1484286. Its totient is φ = 494760.

The previous prime is 989507. The next prime is 989533. The reversal of 989522 is 225989.

989522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 591361 + 398161 = 769^2 + 631^2 .

It is an Ulam number.

It is an unprimeable number.

989522 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247379 + ... + 247382.

2⁹⁸⁹⁵²² is an apocalyptic number.

989522 is a deficient number, since it is larger than the sum of its proper divisors (494764).

989522 is a wasteful number, since it uses less digits than its factorization.

989522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494763.

The product of its digits is 12960, while the sum is 35.

The square root of 989522 is about 994.7472040674. The cubic root of 989522 is about 99.6495063103.

It can be divided in two parts, 98 and 9522, that multiplied together give a square (933156 = 966²).

The spelling of 989522 in words is "nine hundred eighty-nine thousand, five hundred twenty-two".