89540969 has 16 divisors (see below), whose sum is σ = 105381888. Its totient is φ = 74490192.

The previous prime is 89540963. The next prime is 89541013. The reversal of 89540969 is 96904598.

It is a de Polignac number, because none of the positive numbers 2^k-89540969 is a prime.

It is a super-2 number, since 2×89540969² = 16035170258917922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89540963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40712 + ... + 42854.

It is an arithmetic number, because the mean of its divisors is an integer number (6586368).

Almost surely, 2^89540969 is an apocalyptic number.

It is an amenable number.

89540969 is a deficient number, since it is larger than the sum of its proper divisors (15840919).

89540969 is a wasteful number, since it uses less digits than its factorization.

89540969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 89540969 is about 9462.6089954092. The cubic root of 89540969 is about 447.3772854119.

It can be divided in two parts, 89540 and 969, that added together give a palindrome (90509).

The spelling of 89540969 in words is "eighty-nine million, five hundred forty thousand, nine hundred sixty-nine".