89144435 has 12 divisors (see below), whose sum is σ = 111829872. Its totient is φ = 68212848.

The previous prime is 89144431. The next prime is 89144449. The reversal of 89144435 is 53444198.

It is not a de Polignac number, because 89144435 - 2² = 89144431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89144431) 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 11 ways as a sum of consecutive naturals, for example, 14207 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (9319156).

Almost surely, 2^89144435 is an apocalyptic number.

89144435 is a deficient number, since it is larger than the sum of its proper divisors (22685437).

89144435 is a wasteful number, since it uses less digits than its factorization.

89144435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33754 (or 33731 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 89144435 is about 9441.6330684898. The cubic root of 89144435 is about 446.7159016666.

The spelling of 89144435 in words is "eighty-nine million, one hundred forty-four thousand, four hundred thirty-five".