8990039 has 2 divisors, whose sum is σ = 8990040. Its totient is φ = 8990038.

The previous prime is 8990027. The next prime is 8990041. The reversal of 8990039 is 9300998.

8990039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8990039 is a prime.

Together with 8990041, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8989984 and 8990011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8990099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4495019 + 4495020.

It is an arithmetic number, because the mean of its divisors is an integer number (4495020).

Almost surely, 2^8990039 is an apocalyptic number.

8990039 is a deficient number, since it is larger than the sum of its proper divisors (1).

8990039 is an equidigital number, since it uses as much as digits as its factorization.

8990039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 8990039 is about 2998.3393737201. The cubic root of 8990039 is about 207.9316142915.

The spelling of 8990039 in words is "eight million, nine hundred ninety thousand, thirty-nine".