989077 has 8 divisors (see below), whose sum is σ = 1062936. Its totient is φ = 916992.

The previous prime is 989071. The next prime is 989081. The reversal of 989077 is 770989.

It can be written as a sum of positive squares in 4 ways, for example, as 285156 + 703921 = 534^2 + 839^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 989077 - 2¹¹ = 987029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (132867).

2⁹⁸⁹⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

989077 is a deficient number, since it is larger than the sum of its proper divisors (73859).

989077 is a wasteful number, since it uses less digits than its factorization.

989077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 989077 is about 994.5235039958. The cubic root of 989077 is about 99.6345662081.

The spelling of 989077 in words is "nine hundred eighty-nine thousand, seventy-seven".