90011198 has 16 divisors (see below), whose sum is σ = 136620000. Its totient is φ = 44474592.

The previous prime is 90011191. The next prime is 90011203. The reversal of 90011198 is 89111009.

It is a self number, because there is not a number n which added to its sum of digits gives 90011198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90011191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67583 + ... + 68901.

It is an arithmetic number, because the mean of its divisors is an integer number (8538750).

Almost surely, 2^90011198 is an apocalyptic number.

90011198 is a deficient number, since it is larger than the sum of its proper divisors (46608802).

90011198 is a wasteful number, since it uses less digits than its factorization.

90011198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 90011198 is about 9487.4231485688. The cubic root of 90011198 is about 448.1590600962.

It can be divided in two parts, 90011 and 198, that added together give a palindrome (90209).

The spelling of 90011198 in words is "ninety million, eleven thousand, one hundred ninety-eight".