89994785 has 4 divisors (see below), whose sum is σ = 107993748. Its totient is φ = 71995824.

The previous prime is 89994721. The next prime is 89994799. The reversal of 89994785 is 58749998.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25240576 + 64754209 = 5024^2 + 8047^2 .

It is a cyclic number.

It is not a de Polignac number, because 89994785 - 2⁶ = 89994721 is a prime.

It is a super-2 number, since 2×89994785² = 16198122654392450, which contains 22 as substring.

It is a Duffinian 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, 8999474 + ... + 8999483.

It is an arithmetic number, because the mean of its divisors is an integer number (26998437).

Almost surely, 2^89994785 is an apocalyptic number.

It is an amenable number.

89994785 is a deficient number, since it is larger than the sum of its proper divisors (17998963).

89994785 is a wasteful number, since it uses less digits than its factorization.

89994785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17998962.

The product of its digits is 6531840, while the sum is 59.

The square root of 89994785 is about 9486.5581218902. The cubic root of 89994785 is about 448.1318187382.

The spelling of 89994785 in words is "eighty-nine million, nine hundred ninety-four thousand, seven hundred eighty-five".