989526423 has 16 divisors (see below), whose sum is σ = 1334976480. Its totient is φ = 651915264.

The previous prime is 989526413. The next prime is 989526437. The reversal of 989526423 is 324625989.

It is a happy number.

It is not a de Polignac number, because 989526423 - 2⁴ = 989526407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989526413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115533 + ... + 123801.

It is an arithmetic number, because the mean of its divisors is an integer number (83436030).

Almost surely, 2^989526423 is an apocalyptic number.

989526423 is a deficient number, since it is larger than the sum of its proper divisors (345450057).

989526423 is a wasteful number, since it uses less digits than its factorization.

989526423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8738.

The product of its digits is 933120, while the sum is 48.

The square root of 989526423 is about 31456.7389123539. The cubic root of 989526423 is about 996.4965478235.

The spelling of 989526423 in words is "nine hundred eighty-nine million, five hundred twenty-six thousand, four hundred twenty-three".