89901899 has 8 divisors (see below), whose sum is σ = 96804720. Its totient is φ = 83178496.

The previous prime is 89901893. The next prime is 89901907. The reversal of 89901899 is 99810998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89901899 - 2⁴ = 89901883 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 89901899.

It is not an unprimeable number, because it can be changed into a prime (89901893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43814 + ... + 45819.

It is an arithmetic number, because the mean of its divisors is an integer number (12100590).

Almost surely, 2^89901899 is an apocalyptic number.

89901899 is a deficient number, since it is larger than the sum of its proper divisors (6902821).

89901899 is a wasteful number, since it uses less digits than its factorization.

89901899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89709.

The product of its (nonzero) digits is 419904, while the sum is 53.

The square root of 89901899 is about 9481.6611941157. The cubic root of 89901899 is about 447.9775894269.

Subtracting 89901899 from its reverse (99810998), we obtain a palindrome (9909099).

The spelling of 89901899 in words is "eighty-nine million, nine hundred one thousand, eight hundred ninety-nine".