89994789 has 12 divisors (see below), whose sum is σ = 130102336. Its totient is φ = 59945832.

The previous prime is 89994721. The next prime is 89994799. The reversal of 89994789 is 98749998.

It is not a de Polignac number, because 89994789 - 2¹¹ = 89992741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89994799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9294 + ... + 16320.

Almost surely, 2^89994789 is an apocalyptic number.

It is an amenable number.

89994789 is a deficient number, since it is larger than the sum of its proper divisors (40107547).

89994789 is a wasteful number, since it uses less digits than its factorization.

89994789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456 (or 8453 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 89994789 is about 9486.5583327148. The cubic root of 89994789 is about 448.1318253776.

The spelling of 89994789 in words is "eighty-nine million, nine hundred ninety-four thousand, seven hundred eighty-nine".