9093989 has 4 divisors (see below), whose sum is σ = 9572640. Its totient is φ = 8615340.

The previous prime is 9093961. The next prime is 9093991. The reversal of 9093989 is 9893909.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9893909 = 73 ⋅135533.

It is a cyclic number.

It is not a de Polignac number, because 9093989 - 2¹² = 9089893 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 (9093919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239297 + ... + 239334.

It is an arithmetic number, because the mean of its divisors is an integer number (2393160).

Almost surely, 2^9093989 is an apocalyptic number.

It is an amenable number.

9093989 is a deficient number, since it is larger than the sum of its proper divisors (478651).

9093989 is a wasteful number, since it uses less digits than its factorization.

9093989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478650.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 9093989 is about 3015.6241476683. The cubic root of 9093989 is about 208.7299687952.

The spelling of 9093989 in words is "nine million, ninety-three thousand, nine hundred eighty-nine".