89433391 has 4 divisors (see below), whose sum is σ = 89492032. Its totient is φ = 89374752.

The previous prime is 89433353. The next prime is 89433401. The reversal of 89433391 is 19333498.

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

It is a cyclic number.

It is not a de Polignac number, because 89433391 - 2⁷ = 89433263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89433191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26970 + ... + 30103.

It is an arithmetic number, because the mean of its divisors is an integer number (22373008).

Almost surely, 2^89433391 is an apocalyptic number.

89433391 is a deficient number, since it is larger than the sum of its proper divisors (58641).

89433391 is a wasteful number, since it uses less digits than its factorization.

89433391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58640.

The product of its digits is 69984, while the sum is 40.

The square root of 89433391 is about 9456.9229139292. The cubic root of 89433391 is about 447.1980481261.

The spelling of 89433391 in words is "eighty-nine million, four hundred thirty-three thousand, three hundred ninety-one".