8037989 has 4 divisors (see below), whose sum is σ = 8068140. Its totient is φ = 8007840.

The previous prime is 8037973. The next prime is 8038003. The reversal of 8037989 is 9897308.

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 693889 + 7344100 = 833^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 8037989 - 2⁴ = 8037973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8037919) by changing a digit.

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, 14672 + ... + 15209.

It is an arithmetic number, because the mean of its divisors is an integer number (2017035).

Almost surely, 2^8037989 is an apocalyptic number.

It is an amenable number.

8037989 is a deficient number, since it is larger than the sum of its proper divisors (30151).

8037989 is a wasteful number, since it uses less digits than its factorization.

8037989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30150.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 8037989 is about 2835.1347410661. The cubic root of 8037989 is about 200.3160752191.

The spelling of 8037989 in words is "eight million, thirty-seven thousand, nine hundred eighty-nine".