89419409 has 4 divisors (see below), whose sum is σ = 89882916. Its totient is φ = 88955904.

The previous prime is 89419399. The next prime is 89419411. The reversal of 89419409 is 90491498.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26296384 + 63123025 = 5128^2 + 7945^2 .

It is a cyclic number.

It is not a de Polignac number, because 89419409 - 2⁸ = 89419153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 89419409.

It is not an unprimeable number, because it can be changed into a prime (89416409) 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 3 ways as a sum of consecutive naturals, for example, 231464 + ... + 231849.

It is an arithmetic number, because the mean of its divisors is an integer number (22470729).

Almost surely, 2^89419409 is an apocalyptic number.

It is an amenable number.

89419409 is a deficient number, since it is larger than the sum of its proper divisors (463507).

89419409 is a wasteful number, since it uses less digits than its factorization.

89419409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463506.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 89419409 is about 9456.1836382338. The cubic root of 89419409 is about 447.1747419578.

The spelling of 89419409 in words is "eighty-nine million, four hundred nineteen thousand, four hundred nine".