90191106 has 24 divisors (see below), whose sum is σ = 196348464. Its totient is φ = 29919960.

The previous prime is 90191093. The next prime is 90191113. The reversal of 90191106 is 60119109.

It is a self number, because there is not a number n which added to its sum of digits gives 90191106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8076 + ... + 15671.

It is an arithmetic number, because the mean of its divisors is an integer number (8181186).

Almost surely, 2^90191106 is an apocalyptic number.

90191106 is an abundant number, since it is smaller than the sum of its proper divisors (106157358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90191106 is a wasteful number, since it uses less digits than its factorization.

90191106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23966 (or 23963 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 90191106 is about 9496.8998099380. The cubic root of 90191106 is about 448.4574442384.

The spelling of 90191106 in words is "ninety million, one hundred ninety-one thousand, one hundred six".