90000898 has 16 divisors (see below), whose sum is σ = 146829816. Its totient is φ = 41126400.

The previous prime is 90000881. The next prime is 90000913. The reversal of 90000898 is 89800009.

It can be written as a sum of positive squares in 4 ways, for example, as 89737729 + 263169 = 9473^2 + 513^2 .

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, 14511 + ... + 19762.

Almost surely, 2^90000898 is an apocalyptic number.

90000898 is a deficient number, since it is larger than the sum of its proper divisors (56828918).

90000898 is a wasteful number, since it uses less digits than its factorization.

90000898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34389.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 90000898 is about 9486.8803091427. The cubic root of 90000898 is about 448.1419651328.

The spelling of 90000898 in words is "ninety million, eight hundred ninety-eight", and thus it is an aban number.