90199958 has 8 divisors (see below), whose sum is σ = 137852928. Its totient is φ = 44248984.

The previous prime is 90199957. The next prime is 90199999. The reversal of 90199958 is 85999109.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90199957) by changing a digit.

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, 425366 + ... + 425577.

It is an arithmetic number, because the mean of its divisors is an integer number (17231616).

Almost surely, 2^90199958 is an apocalyptic number.

90199958 is a deficient number, since it is larger than the sum of its proper divisors (47652970).

90199958 is a wasteful number, since it uses less digits than its factorization.

90199958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850998.

The product of its (nonzero) digits is 262440, while the sum is 50.

The square root of 90199958 is about 9497.3658453279. The cubic root of 90199958 is about 448.4721153651.

The spelling of 90199958 in words is "ninety million, one hundred ninety-nine thousand, nine hundred fifty-eight".