90198395 has 8 divisors (see below), whose sum is σ = 123700704. Its totient is φ = 61850304.

The previous prime is 90198389. The next prime is 90198403. The reversal of 90198395 is 59389109.

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 90198395 - 2²² = 86004091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1288514 + ... + 1288583.

It is an arithmetic number, because the mean of its divisors is an integer number (15462588).

Almost surely, 2^90198395 is an apocalyptic number.

90198395 is a deficient number, since it is larger than the sum of its proper divisors (33502309).

90198395 is a wasteful number, since it uses less digits than its factorization.

90198395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577109.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 90198395 is about 9497.2835589973. The cubic root of 90198395 is about 448.4695249501.

The spelling of 90198395 in words is "ninety million, one hundred ninety-eight thousand, three hundred ninety-five".