3788989 has 2 divisors, whose sum is σ = 3788990. Its totient is φ = 3788988.

The previous prime is 3788969. The next prime is 3789013. The reversal of 3788989 is 9898873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3080025 + 708964 = 1755^2 + 842^2 .

It is a cyclic number.

It is not a de Polignac number, because 3788989 - 2⁷ = 3788861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3788929) 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 as a sum of consecutive naturals, namely, 1894494 + 1894495.

It is an arithmetic number, because the mean of its divisors is an integer number (1894495).

Almost surely, 2^3788989 is an apocalyptic number.

It is an amenable number.

3788989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3788989 is an equidigital number, since it uses as much as digits as its factorization.

3788989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 3788989 is about 1946.5325581659. The cubic root of 3788989 is about 155.8982050123.

The spelling of 3788989 in words is "three million, seven hundred eighty-eight thousand, nine hundred eighty-nine".