989096091 has 32 divisors (see below), whose sum is σ = 1472866560. Its totient is φ = 586745856.

The previous prime is 989096089. The next prime is 989096093. The reversal of 989096091 is 190690989.

It is an interprime number because it is at equal distance from previous prime (989096089) and next prime (989096093).

It is not a de Polignac number, because 989096091 - 2¹ = 989096089 is a prime.

It is a super-2 number, since 2×989096091² = 1956622154462960562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (989096093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 761955 + ... + 763251.

It is an arithmetic number, because the mean of its divisors is an integer number (46027080).

Almost surely, 2^989096091 is an apocalyptic number.

989096091 is a deficient number, since it is larger than the sum of its proper divisors (483770469).

989096091 is a wasteful number, since it uses less digits than its factorization.

989096091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 314928, while the sum is 51.

The square root of 989096091 is about 31449.8981079431. The cubic root of 989096091 is about 996.3520724729.

The spelling of 989096091 in words is "nine hundred eighty-nine million, ninety-six thousand, ninety-one".