89790438 has 32 divisors (see below), whose sum is σ = 188344800. Its totient is φ = 28498176.

The previous prime is 89790419. The next prime is 89790473. The reversal of 89790438 is 83409798.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9168 + ... + 16236.

It is an arithmetic number, because the mean of its divisors is an integer number (5885775).

Almost surely, 2^89790438 is an apocalyptic number.

89790438 is an abundant number, since it is smaller than the sum of its proper divisors (98554362).

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

89790438 is a wasteful number, since it uses less digits than its factorization.

89790438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 89790438 is about 9475.7816564123. The cubic root of 89790438 is about 447.7923776192.

The spelling of 89790438 in words is "eighty-nine million, seven hundred ninety thousand, four hundred thirty-eight".