989022031 has 4 divisors (see below), whose sum is σ = 1002570352. Its totient is φ = 975473712.

The previous prime is 989022019. The next prime is 989022101. The reversal of 989022031 is 130220989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130220989 = 379 ⋅343591.

It is a cyclic number.

It is not a de Polignac number, because 989022031 - 2⁹ = 989021519 is a prime.

It is a super-2 number, since 2×989022031² = 1956329155606729922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989022431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6774051 + ... + 6774196.

It is an arithmetic number, because the mean of its divisors is an integer number (250642588).

Almost surely, 2^989022031 is an apocalyptic number.

989022031 is a deficient number, since it is larger than the sum of its proper divisors (13548321).

989022031 is a wasteful number, since it uses less digits than its factorization.

989022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548320.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 989022031 is about 31448.7206576039. The cubic root of 989022031 is about 996.3272040848.

The spelling of 989022031 in words is "nine hundred eighty-nine million, twenty-two thousand, thirty-one".