89611799 has 4 divisors (see below), whose sum is σ = 89799360. Its totient is φ = 89424240.

The previous prime is 89611789. The next prime is 89611829. The reversal of 89611799 is 99711698.

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 89611799 - 2⁴ = 89611783 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 (89611789) 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, 93062 + ... + 94019.

It is an arithmetic number, because the mean of its divisors is an integer number (22449840).

Almost surely, 2^89611799 is an apocalyptic number.

89611799 is a deficient number, since it is larger than the sum of its proper divisors (187561).

89611799 is a wasteful number, since it uses less digits than its factorization.

89611799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187560.

The product of its digits is 244944, while the sum is 50.

The square root of 89611799 is about 9466.3508808833. The cubic root of 89611799 is about 447.4952179508.

The spelling of 89611799 in words is "eighty-nine million, six hundred eleven thousand, seven hundred ninety-nine".