89903418 has 32 divisors (see below), whose sum is σ = 197968320. Its totient is φ = 26991360.

The previous prime is 89903417. The next prime is 89903461. The reversal of 89903418 is 81430998.

It is a self number, because there is not a number n which added to its sum of digits gives 89903418.

It is not an unprimeable number, because it can be changed into a prime (89903413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946 + ... + 13442.

It is an arithmetic number, because the mean of its divisors is an integer number (6186510).

Almost surely, 2^89903418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89903418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98984160).

89903418 is an abundant number, since it is smaller than the sum of its proper divisors (108064902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89903418 is a wasteful number, since it uses less digits than its factorization.

89903418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12622.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 89903418 is about 9481.7412957747. The cubic root of 89903418 is about 447.9801124516.

The spelling of 89903418 in words is "eighty-nine million, nine hundred three thousand, four hundred eighteen".