2002654789 has 4 divisors (see below), whose sum is σ = 2004246720. Its totient is φ = 2001062860.

The previous prime is 2002654783. The next prime is 2002654807. The reversal of 2002654789 is 9874562002.

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 2002654789 - 2¹¹ = 2002652741 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 (2002654783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794077 + ... + 796594.

It is an arithmetic number, because the mean of its divisors is an integer number (501061680).

Almost surely, 2^2002654789 is an apocalyptic number.

It is an amenable number.

2002654789 is a deficient number, since it is larger than the sum of its proper divisors (1591931).

2002654789 is a wasteful number, since it uses less digits than its factorization.

2002654789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591930.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2002654789 is about 44751.0311501311. The cubic root of 2002654789 is about 1260.4782741728.

The spelling of 2002654789 in words is "two billion, two million, six hundred fifty-four thousand, seven hundred eighty-nine".