9940089 has 4 divisors (see below), whose sum is σ = 13253456. Its totient is φ = 6626724.

The previous prime is 9940067. The next prime is 9940093. The reversal of 9940089 is 9800499.

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.

It is not a de Polignac number, because 9940089 - 2⁷ = 9939961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656679 + ... + 1656684.

It is an arithmetic number, because the mean of its divisors is an integer number (3313364).

Almost surely, 2^9940089 is an apocalyptic number.

It is an amenable number.

9940089 is a deficient number, since it is larger than the sum of its proper divisors (3313367).

9940089 is a wasteful number, since it uses less digits than its factorization.

9940089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313366.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 9940089 is about 3152.7906685982. The cubic root of 9940089 is about 215.0123591237.

The spelling of 9940089 in words is "nine million, nine hundred forty thousand, eighty-nine".