2002331789 has 2 divisors, whose sum is σ = 2002331790. Its totient is φ = 2002331788.

The previous prime is 2002331761. The next prime is 2002331797. The reversal of 2002331789 is 9871332002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1165676164 + 836655625 = 34142^2 + 28925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002331789 - 2¹² = 2002327693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002331729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001165894 + 1001165895.

It is an arithmetic number, because the mean of its divisors is an integer number (1001165895).

Almost surely, 2^2002331789 is an apocalyptic number.

It is an amenable number.

2002331789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002331789 is an equidigital number, since it uses as much as digits as its factorization.

2002331789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2002331789 is about 44747.4221492144. The cubic root of 2002331789 is about 1260.4105047341.

The spelling of 2002331789 in words is "two billion, two million, three hundred thirty-one thousand, seven hundred eighty-nine".