89636399 has 4 divisors (see below), whose sum is σ = 91155720. Its totient is φ = 88117080.

The previous prime is 89636383. The next prime is 89636401. The reversal of 89636399 is 99363698.

It is a happy number.

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 89636399 - 2⁴ = 89636383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89636399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89636329) 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, 759572 + ... + 759689.

It is an arithmetic number, because the mean of its divisors is an integer number (22788930).

Almost surely, 2^89636399 is an apocalyptic number.

89636399 is a deficient number, since it is larger than the sum of its proper divisors (1519321).

89636399 is a wasteful number, since it uses less digits than its factorization.

89636399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519320.

The product of its digits is 1889568, while the sum is 53.

The square root of 89636399 is about 9467.6501308403. The cubic root of 89636399 is about 447.5361626155.

The spelling of 89636399 in words is "eighty-nine million, six hundred thirty-six thousand, three hundred ninety-nine".