90008898 has 16 divisors (see below), whose sum is σ = 205734720. Its totient is φ = 25716816.

The previous prime is 90008881. The next prime is 90008911. The reversal of 90008898 is 89880009.

It is a super-3 number, since 3×90008898³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2143069 = 90008898 / (9 + 0 + 0 + 0 + 8 + 8 + 9 + 8).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071493 + ... + 1071576.

It is an arithmetic number, because the mean of its divisors is an integer number (12858420).

Almost surely, 2^90008898 is an apocalyptic number.

90008898 is an abundant number, since it is smaller than the sum of its proper divisors (115725822).

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

90008898 is a wasteful number, since it uses less digits than its factorization.

90008898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143081.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 90008898 is about 9487.3019346914. The cubic root of 90008898 is about 448.1552428873.

The spelling of 90008898 in words is "ninety million, eight thousand, eight hundred ninety-eight".