90009794 has 64 divisors (see below), whose sum is σ = 167961600. Its totient is φ = 35363328.

The previous prime is 90009779. The next prime is 90009839. The reversal of 90009794 is 49790009.

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 31 ways as a sum of consecutive naturals, for example, 1011302 + ... + 1011390.

It is an arithmetic number, because the mean of its divisors is an integer number (2624400).

Almost surely, 2^90009794 is an apocalyptic number.

90009794 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

90009794 is a deficient number, since it is larger than the sum of its proper divisors (77951806).

90009794 is a wasteful number, since it uses less digits than its factorization.

90009794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 90009794 is about 9487.3491555861. The cubic root of 90009794 is about 448.1567299469.

The spelling of 90009794 in words is "ninety million, nine thousand, seven hundred ninety-four".