989722 has 8 divisors (see below), whose sum is σ = 1512756. Its totient is φ = 485472.

The previous prime is 989719. The next prime is 989743. The reversal of 989722 is 227989.

989722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 844561 + 145161 = 919^2 + 381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4563 + ... + 4774.

2⁹⁸⁹⁷²² is an apocalyptic number.

989722 is a deficient number, since it is larger than the sum of its proper divisors (523034).

989722 is a wasteful number, since it uses less digits than its factorization.

989722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392.

The product of its digits is 18144, while the sum is 37.

The square root of 989722 is about 994.8477270417. The cubic root of 989722 is about 99.6562195040.

It can be divided in two parts, 989 and 722, that added together give a triangular number (1711 = T₅₈).

The spelling of 989722 in words is "nine hundred eighty-nine thousand, seven hundred twenty-two".