90850198 has 8 divisors (see below), whose sum is σ = 136662408. Its totient is φ = 45296064.

The previous prime is 90850189. The next prime is 90850213. The reversal of 90850198 is 89105809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90850198.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 63636 + ... + 65047.

It is an arithmetic number, because the mean of its divisors is an integer number (17082801).

Almost surely, 2^90850198 is an apocalyptic number.

90850198 is a deficient number, since it is larger than the sum of its proper divisors (45812210).

90850198 is a wasteful number, since it uses less digits than its factorization.

90850198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129038.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 90850198 is about 9531.5370219079. The cubic root of 90850198 is about 449.5471955553.

It can be divided in two parts, 908501 and 98, that multiplied together give a palindrome (89033098).

The spelling of 90850198 in words is "ninety million, eight hundred fifty thousand, one hundred ninety-eight".