8001789 has 4 divisors (see below), whose sum is σ = 10669056. Its totient is φ = 5334524.

The previous prime is 8001787. The next prime is 8001811. The reversal of 8001789 is 9871008.

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 a cyclic number.

It is not a de Polignac number, because 8001789 - 2¹ = 8001787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8001787) 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, 1333629 + ... + 1333634.

It is an arithmetic number, because the mean of its divisors is an integer number (2667264).

Almost surely, 2^8001789 is an apocalyptic number.

It is an amenable number.

8001789 is a deficient number, since it is larger than the sum of its proper divisors (2667267).

8001789 is a wasteful number, since it uses less digits than its factorization.

8001789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667266.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 8001789 is about 2828.7433605755. The cubic root of 8001789 is about 200.0149072222.

The spelling of 8001789 in words is "eight million, one thousand, seven hundred eighty-nine".